Antonio Diaz, a 40-year-old resident of Oakland, California, was tragically shot and killed on April 21, 2020. The incident occurred in the 400 block of Caswell Avenue in the Brookfield Village neighborhood of East Oakland. Diaz was found with gunshot wounds around 9 p.m. and was later pronounced dead at a local hospital. The Oakland Police Department initially did not release a motive for the killing and no immediate arrests were made.
The case drew significant attention, with authorities offering a reward for information leading to the arrest of the perpetrator.
The investigation into Diaz's death took a significant turn when James Mallett, a 43-year-old ex-convict, was charged with his murder. Mallett, known by the alias "Jesse James," was linked to the crime through a series of events that began weeks before the fatal shooting. In February 2020, Mallett allegedly stabbed Diaz multiple times at the Park Lane Motel on MacArthur Boulevard, an incident captured on surveillance video. Despite the severity of the attack, Diaz survived and was hospitalized, but he chose not to cooperate with police efforts to prosecute Mallett for attempted murder.
Following the stabbing, Mallett and Diaz had another violent encounter. On April 21, 2020, Mallett allegedly shot Diaz at a homeless encampment where Mallett resided. During the investigation, police discovered a poem in Mallett's possession that referenced the killing of Diaz and hinted at a potential suicide-by-cop scenario. This poem, along with other evidence, played a crucial role in linking Mallett to the murder. Mallett was subsequently arrested and charged with both the attempted murder from the stabbing incident and the murder of Diaz.
In court, Mallett pleaded not guilty to the charges. However, in a later development, he accepted a plea deal, pleading no contest to voluntary manslaughter. This agreement resulted in a nine-year prison sentence, with formal sentencing scheduled for September 2023. The plea deal brought some closure to the case, although questions about the motive and the nature of the relationship between Mallett and Diaz remained. The tragic death of Antonio Diaz highlighted the ongoing issues of violence and crime in Oakland, and the case underscored the complexities involved in prosecuting such crimes.