From Mason’s appeal 1991:
A. Guilt Phase
Between March 9, 1980, and December 7, 1980, defendant entered the homes of, robbed, and strangled four elderly residents of Oakland: Joan Picard (71), Arthur Jennings (83), Antoinette Brown (75), and Dorothy Lang (72). On February 4, 1981, defendant was arrested. On May 9, 1982, defendant murdered Boyd Johnson, an inmate in the Alameda County jail.
1. The Oakland Murders
The prosecution proved that defendant murdered Picard, Jennings, Brown, and Lang primarily through his own admissions. Several weeks before he was arrested, defendant confessed to the four murders in a tape recording that he prepared for his family. Defendant inscribed the tape cassette with the label “David E. Mason—Epitaph.” After he was arrested, defendant provided detailed information about the murders to police in four lengthy statements. He also led representatives of the district attorney’s office to the places where the murders had occurred.a. The Murder of Joan Picard
In statements to the police, defendant described Joan Picard’s murder in detail. Defendant had known Picard seven or eight years earlier, when he was a teenager. He had done odd jobs for her, such as cleaning and gardening, and considered her a friend. On occasion, Picard invited defendant into her home for refreshments, to talk about religion, and to show him her coin collection. Picard, who was concerned about burglars, also showed defendant her alarm system and its panic buttons.On March 6, 1980, low on funds, defendant remembered Picard and her coin collection. He took a bus to her home and knocked on her door. Picard, now 73 years old, remembered him and invited him in. Defendant pulled out an ice pick, told Picard that he planned to rob her, and instructed her not to scream or run. Initially, Picard did not believe what defendant was saying. To convince her that he was serious, he told her, falsely, that he was a drug addict.
Defendant led Picard upstairs, where he found $3 under a stack of newspapers in the bedroom. When she attempted to reach the panic button, he pulled her back and choked her until she lost consciousness. When Picard regained consciousness, she told him to take everything. According to defendant, she said: “I’d rather let you have everything [than] to believe that you’re doing this.” When defendant began to search the house, Picard tried to escape. Defendant tied her wrists with an electrical cord and told her not to move. After finishing his search, which produced the coin collection, defendant returned to Picard. Afraid that she would identify him, he killed her by tightening a ligature around her neck. Picard’s daughter found the body two days later. It had been placed in the pantry behind a closed door. Physical evidence from the crime scene substantially corroborated defendant’s later statements. Picard’s body was on the floor. Around her neck was a wire, twisted tight with a pencil to form a tourniquet. The larynx and hyoid bones in her neck had been fractured, probably by manual strangulation. Asphyxiation due to strangulation was the cause of death. Picard’s hands were tied in the front with an electrical cord that had been cut from a clock radio. The clock radio had stopped at 12:29 p.m. Bruises on her face, neck, chest, and arms indicated a severe beating before death. There were bloodstains in the living room, on the stairway, and in the bedroom. The only clothes left on the body were a blue skirt and a brassiere. A sweater had been forcibly removed; fragments of the buttons were scattered on the floor. Picard’s daughter testified that her mother’s coin collection was missing. Defendant admitted selling the coins. A pawnbroker testified that he purchased them from defendant for $85 on March 6, 1980, at 4:40 p.m.
Testifying on his own behalf at trial, defendant admitted involvement in Picard’s murder, as he had in the Epitaph Tape and in his statements to police. At trial, however, defendant repudiated his earlier confessions and claimed that he had robbed Picard together with an accomplice, Doug Denard. According to defendant’s trial testimony, Denard killed Picard against defendant’s wishes while defendant was out of the room.
b. The Murder of Arthur Jennings
In his statements to the police defendant also described his murder of 83–year–old Arthur Jennings. As a teenager, defendant had known Jennings as “Niko,” someone who would trade money for sexual favors. Defendant had met Jennings for this purpose several times, most often in Jennings’s car but twice in his cottage near defendant’s junior high school.On August 18, 1980, looking for “something to do,” defendant knocked on Jennings’s door. When the door opened defendant pushed it in, causing Jennings, who walked with a cane, to fall backwards onto the floor. Defendant rushed in and fell on top of him. Jennings swung at defendant and struggled. Defendant punched Jennings, put his hands around Jennings’s neck, and strangled him. When Jennings stopped breathing, defendant ransacked the house. Defendant left with Jennings’s World War I military service ring and about $16.
A Meals–on–Wheels driver had delivered a meal and spoken to Jennings at about 10:30 a.m. The next day, the driver discovered the body lying on a bed in the front room. Physical evidence substantially corroborated defendant’s later statements about the murder. Jennings’s spine had fractured in a backwards fall, and he had been severely beaten before death. There were bruises on his face, head, neck, and upper body. His larynx and hyoid bones had multiple fractures. The cause of death was asphyxiation due to manual strangulation. The coroner estimated that Jennings had eaten about an hour before he died, thus placing the time of death at about 11:30 a.m.
At trial, defendant repudiated his earlier statements, claiming that he had never met Jennings and did not kill him. Defendant also presented the alibi that he had been working at Thrift Town, a secondhand shop, on the day Jennings died. Defendant’s time card was punched in at 12:31 p.m. and punched out at 9:02 p.m. In rebuttal, the People showed that others could have punched defendant’s card. Defendant’s brother, who also worked at Thrift Town, punched out for lunch at 12:31 p.m. Karen Worden, defendant’s friend, punched out at 9:03 p.m.
c. The Murder of Antoinette Brown
Defendant killed Antoinette Brown, a 75–year–old widow living alone, on November 16, 1980. The last person who saw Brown alive was Wayne Anderson, a neighbor. At about 4 p.m. on Sunday, November 16, Brown brought Anderson some homemade cookies, and he invited her to Thanksgiving dinner. When Anderson returned from work the next day he saw that Brown’s Sunday and Monday newspapers were still at her door. He knocked on her door and telephoned but got no answer. Because Brown still had not collected her newspapers on Tuesday, Anderson called Brown’s sister, who had a key to the apartment.
Inside the apartment, Anderson and Brown’s sister found the body face down in the bedroom. Around Brown’s neck was a knotted ligature fashioned from a silk undergarment. Brown’s body was clothed, but her slip had been pulled up above her waist and her brassiere had been pulled down. The autopsy surgeon determined that Brown had died of asphyxiation due to strangulation. Brown had also been beaten before death. There were bruises, scrapes, and cuts over most of her body. In addition, Brown’s rings and purse had been taken from the apartment. A second neighbor, Paula White, testified that she briefly saw a young, male stranger leave the elevator on the first floor at about 4 p.m. During their investigation, police asked White to select a photograph of the stranger from a set of six. She selected photographs of defendant and one other person.In his statements to the police, defendant occasionally confused Brown’s murder with that of Dorothy Lang, his next victim. Defendant did, however, provide many accurate details. Defendant correctly remembered that the murder had occurred at about 4 p.m. Defendant also correctly remembered that Brown had worn a dark colored dress with a flowered design, that she had driven a full-sized American car, that her apartment building had four floors and a balcony facing the street, that she had lived in the front apartment on the second floor, and that the underground garage, which was not visible from the street, had a cord that opened the door automatically. Defendant also drew for police an accurate diagram of Brown’s apartment and pointed out to them, from the street, the apartment in which she had died.
At trial, defendant denied any involvement in Brown’s murder and testified that he had been in Oroville, approximately 145 miles away, on the evening of November 16. At the time, defendant was living with Robert Groff, whom he later killed, in a trailer park on the Feather River. Mr. Fry, Groff’s neighbor, testified that he saw defendant in the trailer park several times on the evening of Sunday, November 16, and helped him to install a new water heater in Groff’s trailer. Mrs. Fry, however, testified that her husband was mistaken about the date. According to Mrs. Fry, the couple drove to her sister’s house in Yuba City on the 16th. They did not return until late that night and left for a week’s vacation early the next morning. It was the next weekend, November 23, on which Mr. Fry helped defendant install the new heater.
d. The Murder of Dorothy Lang
Dorothy Lang lived alone in a second-floor apartment on Fruitvale Avenue in Oakland. She was 72 years old. Defendant killed Lang on December 6, 1980. At about 9 p.m. that evening, Lang’s downstairs neighbors and friends, Teresa and John Santos, heard a loud thump and scuffling noises coming from above. Half an hour later, the Santoses heard loud breathing and things being dropped on the floor. Mrs. Santos telephoned Lang and knocked on her door but got no answer. Returning to her own apartment, Mrs. Santos stood in her bedroom, directly underneath Lang’s, and called out, “Dorothy, Dorothy, are you all right?” A voice answered, “Yes.” Immediately thereafter the Santoses heard footsteps, followed by the sound of Lang’s screen door slamming shut. The Santoses assumed Lang had gone to bed. The next morning the Santoses went upstairs to deliver Lang’s Sunday morning paper. Seeing her door ajar and fearing that something was wrong, they entered. Lang’s body was lying on the bedroom floor. It appeared that she had fled from the door to the bedroom; her glasses and a single slipper were lying near the door. Her head was covered with a bloodstained bedspread, and a crescent wrench lay nearby. Lang’s body was naked from her chest to her ankles. Her sweater and brassiere had been pushed up to the throat, exposing her breasts. Beside Lang’s body was a torn pair of pants. Small, valuable items were missing from Lang’s apartment, including an old-fashioned wedding band, an engagement ring, lapel pins, and earrings. Some ring boxes in her bedroom had also been emptied.The autopsy showed that Lang had died of asphyxiation due to manual strangulation and chest injuries. Before she died, she had been beaten on the head with the crescent wrench. Ribs had been broken, probably by someone kneeling on her chest, and she had bruises all over her body. Her vaginal tissue was slightly cut and bruised.
As already mentioned, defendant in his statements to the police occasionally confused the details of Lang’s murder with that of Brown. Defendant did, however, provide many accurate details. He correctly remembered that Lang’s apartment was near a Rexall drugstore, a funeral parlor, and a park, and that he had to jump over a little wall to approach the apartment building from the side. Defendant also remembered several accurate details of the killing. In particular, defendant remembered feeling “really nervous” while in Lang’s apartment, “thinking that her neighbors had heard something” while Lang was running and yelling. Defendant also described seeing Lang at the door to her apartment, following her as she ran back towards the bedroom, hitting her, leaving her in the bedroom, and taking her “old wedding ring” and “some other rings.”
Victims
Joan Picard, 73 [3/6/1980]
Arthur Jennings, 83 [8/18/1980, veteran]
Antoinette Brown, 75 [11/16/1980]
Dorothy Lang, 72 [12/6/1980]
Robert Groff, 55 [2/4/1981 Butte County
Boyd Wayne Johnson, 24 [cellmate, 5/9/1982]
Supreme Court of California v David Edwin Mason 1991 (convictions and sentence affirmed)
David Edwin Mason v Daniel B. Vasquez 1993 (habeas corpus denied)
Condemned man skips death choice
Mason’s life full of abuse, violence
Keeping his vow, Killer is executed
Murderer vows not to halt execution, says last goodbyes
Mason faced his death stoically
Executed Inmate Summary: David Edwin Mason
Murderpedia: David Edwin Mason
Wikipedia: David Mason
State-Sanctioned Suicide
Find-A-Grave: David Edwin Mason
David Edwin Mason