Public reporting shows a compressed timeline in which family conflict, a fatal shooting, a multistate manhunt and a plea deal all unfolded within one criminal case.
HAYWARD, Calif. — The case that ended with Vaughn Boatner’s 35-year prison sentence unfolded over a timeline that began with family tension in early May 2023 and moved through a fatal shooting, an 11-day search and a later plea deal in Alameda County.
Looking at the case chronologically shows how quickly it developed. Monique Aldridge had recently learned she was pregnant, according to later reporting, and public accounts say conflict followed within days. On May 11, police were called to her home on Cassia Drive, where she was fatally shot and her boyfriend was gravely wounded. Boatner fled, was arrested in Seattle on May 22 and then faced a prosecution that initially carried murder and child abuse allegations before resolving in 2026 with no-contest pleas to reduced charges.
The earliest event described in the reporting came before the gunfire. Law&Crime said Aldridge and her boyfriend argued on May 8 after a dinner outing, only days after she learned she was pregnant with his child. The same report said Boatner later arranged to meet Aldridge at a local park. Prosecutors, as summarized there, said he was worried about the safety of the 5-year-old boy he shared with Aldridge. That park meeting matters because it placed the former couple in direct contact shortly before the attack. Public reporting does not fully spell out how the exchange ended or what communications followed, leaving a gap between that confrontation and the shooting itself.
The next fixed point is the attack at the home. Hayward police said officers responded at about 2 p.m. on May 11 after multiple 911 calls about gunshots on the 100 block of Cassia Drive. Officers found two adults with gunshot wounds and a 5-year-old child inside the residence who was unharmed. Aldridge, 30, died after being taken to a hospital. The second victim, then described as a 28-year-old Oakland man, survived. Later hearing testimony reported by Law&Crime said Boatner got into the garage by sliding under a partially open door. The boyfriend said the child was watching “A Minecraft Movie” nearby, and that he moved the boy to safety as the shooting unfolded. He also recalled the child asking whether his mother was okay.
Investigators moved fast after that. Police said information developed in the first hours led them to identify Boatner, then 33 and living in San Mateo, as the man believed responsible for Aldridge’s killing and the attempted murder of the second victim. They obtained an arrest warrant and a search warrant for his residence but did not find him there. Authorities warned the public that he was believed to be armed and dangerous and said it was unclear what vehicles or other transportation he might be using. Hayward police later said the U.S. Marshals Service supported the search and offered a $10,000 reward for information leading to his arrest.
The manhunt ended on May 22, 2023, when Boatner was arrested in a Seattle residential neighborhood by the Marshals Service with help from Seattle police and the King County Sheriff’s Office. Local television reports at the time said he was held on homicide, attempted homicide, child endangerment and firearm-related allegations. As the case moved forward, more details surfaced. KTVU, citing a probable cause warrant, reported that Aldridge had been shot in the head seven times and was in the early stages of pregnancy. CBS Bay Area reported that prosecutors had filed gun enhancements and that the original case could have carried much steeper punishment if convictions were returned on the top charges.
The final stage came with negotiation rather than trial. Law&Crime reported that Boatner, by then 36, pleaded no contest to voluntary manslaughter and attempted murder. In exchange, prosecutors dropped murder and child abuse counts. He was sentenced March 19 to 35 years in prison and was awaiting transfer to state prison after sentencing. The public materials reviewed do not show every reason behind the final charging decision, and because the case ended in a plea, there was no jury finding on every factual dispute that may have existed. What remained constant from first report to final sentence was the basic shape of the case: one mother killed, one surviving victim badly injured and one child present in the home.
The story also kept a personal aftermath running alongside the legal one. Aldridge’s uncle, Lorenzo Smith, said soon after the shooting that the family faced a long road in helping the boy understand what happened and arranging counseling. His comments came near the beginning of the case, but they still read as the timeline’s last unresolved part. The prosecution has a sentence. The family still has the loss.
The case now appears to have reached its principal endpoint in the trial court, with Boatner sentenced and no jury trial ahead. Any new milestone would most likely come through appellate filings or other limited post-sentencing proceedings.
Author note: Last updated 2026-04-15.