Police Say the Child's Father Is Now in Custody in Sunnyvale Mom's Killing

A mobile home park is supposed to feel like a small, steady universe—neighbors who recognize your car, familiar porches, the quiet rhythm of people coming home after work. That’s what makes this case hit so hard: police say a young mother’s life ended inside her vehicle in a place built for ordinary nights.

Kembery Chirinos-Flores, 24, was shot dead in her car January 7 at Plaza del Rey mobile home park during what investigators describe as a custody handoff for her 5-year-old son, according to the Sunnyvale Department of Public Safety and probable cause affidavit.

In the days after, the story carried a familiar, painful weight: a child left behind, a family stunned, and a community trying to understand how a deadly act could unfold so quickly in a residential setting.

The Timeline Police Have Shared

Officials have provided a clear public starting point. According to the Sunnyvale Department of Public Safety, officers responded to reports of a shooting at about 9:39 p.m. near 1225 Vienna Drive—inside the Plaza del Rey park. When they arrived, the suspects had already fled.

From there, the case became a months-long grind of investigative work—exactly the kind the public rarely sees: interviews, digital trails, coordination across agencies, and the slow process of turning suspicion into an arrest that can survive in court. The Mountain View Voice and the San Francisco Chronicle both describe a multi-agency investigation involving local and federal partners before arrests were made.

The Arrests—and the Relationship at the Center

On March 5, police arrested Gerzon Chirinos (also reported as Gerzon Chirinos-Munguia)—described as Chirinos-Flores’ former partner and father of their 5-year-old son—and Alfonso Inestroza (also known as Franquin Inestroza-Martinez), a Hollister resident with an outstanding New Jersey homicide warrant.

A third suspect, Jorge Bolaños Guerra, 30, has also been formally charged with murder, conspiracy to commit murder, and aiding/abetting, according to the Santa Clara County criminal complaint filed March 10. An arrest warrant has been issued for him.

All three men face murder and conspiracy charges in Santa Clara County Superior Court. Authorities recovered a shotgun believed to be the murder weapon. Police have not publicly stated who fired the fatal shot.

The Evidence Police Point To—and What They’re Not Saying

Police have offered a few concrete investigative details, while keeping the larger case file close.

Sunnyvale’s public safety chief said investigators recovered a shotgun they believe to be the murder weapon.

They’ve also emphasized safety: despite the severity of the crime, police said they determined there is no ongoing threat to the community—language meant to calm a neighborhood that just learned a homicide happened where people live, walk, and raise kids.

But many specifics remain undisclosed—motive, roles, and the precise sequence of events. That silence is common in cases that are still moving through charging decisions and court strategy. Investigators typically avoid releasing details that could compromise testimony, reveal evidence not yet tested in court, or prejudice a jury pool.

The Child Left Behind—and the Kind of Betrayal That Breaks a Community

This case isn’t only about arrests. It’s about what violence does to the living.

Police said Chirinos-Flores was the mother of a 5-year-old son, and Sunnyvale officials described her as someone working two jobs and raising a child in the middle of everyday struggle and hope.

CBS Bay Area reported the child was not physically harmed in the incident and was placed in the custody of child protective services.

That detail carries a particular ache. A homicide can end a life in minutes—then rearrange a child’s entire world for years: where they sleep, who picks them up, who explains the unexplainable in a way a five-year-old mind can survive.

And when police say the child’s father is among the suspects, it pulls the story into its hardest emotional center: the possibility that the danger came from inside the circle that should have been safest.

What Comes Next as the Case Moves Forward

Right now, the case is in the “justice starting to take shape” phase—arrests, custody, and the early steps toward prosecution.

Sunnyvale police have asked anyone with information to contact Detective Eugene Rosette, signaling that—even with arrests—investigators may still be gathering leads, clarifying timelines, and building the strongest possible case.

For the public, there may be frustration in the unknowns. But for the family, the arrests can still mark something real: a moment when the system finally names suspects, places them in custody, and says out loud that this death will not be filed away as an unsolved nightmare.

Kembery Chirinos-Flores was found in a car in a place meant to feel ordinary. Now, police say two men are in custody—one tied to her by parenthood, the other tied to an entirely separate homicide investigation. Whatever the court ultimately determines, the emotional truth is already visible: a young mother is gone, a child’s life has been split into “before” and “after,” and an entire community is left trying to make sense of how safety can be breached so quickly.

References: Sunnyvale police arrest two suspects for murder of Mountain View mother | Sunnyvale fatal shooting: 2 arrested including child’s father