Ann Mannix had been planning to divorce her husband before her death in the Strawberry shooting, a friend told the Marin Independent Journal.

Marie Hurabiell, executive director of the San Francisco civic group ConnectedSF, said she last spoke with Mannix at a party several weeks before the Oct. 11 shooting on Strawberry Circle near Mill Valley. Hurabiell shared the divorce detail with the Marin IJ.

"She said it was hard getting a divorce, but she said it was for the best. She was very hopeful about the future," Hurabiell told the paper.

The Marin County Sheriff’s Office described the deaths as a suspected double murder-suicide. KQED reported that Kevin Mannix, 68, a retired San Francisco Police Department (SFPD) sergeant, fatally shot Ann, 65, and their daughter Katherine Mannix, 24, before dying by suicide Sunday, Oct. 11. The sheriff’s release did not publicly identify the suspected shooter. No motive had been released in the Oct. 13 reporting.

As we reported Oct. 12, deputies found all three dead after a caller inside the home escaped and dialed 911. Sheriff's spokesperson Miguel Almaguer said the address had no prior history of law enforcement calls, according to the Marin IJ.

Ann Mannix's brother, Richard Corriea, also retired from SFPD, told KQED he had been helping his sister navigate the end of her marriage. Corriea said Ann was mostly concerned about her three adult children during the process.

Corriea told KQED he knew of no physical violence in the marriage before Oct. 11. He said he had checked with his niece to confirm there was nothing he did not know about the couple's situation.

Ann Mannix retired from SFPD as a deputy chief after more than 30 years of service, Chief Derrick Lew said in a statement reported by KTVU. She was the first woman to join and lead the department's SWAT team. Kevin Mannix served 27 years with SFPD, including time at Taraval Station, according to the San Francisco Chronicle.

Katherine Mannix was a second-year nursing student at the College of Marin, according to KQED. Ann Mannix is survived by two other adult children, according to friends and family quoted by ABC7.

Louis Wong, president of the San Francisco Police Officers Association, said Oct. 13 that memorial service arrangements were pending, the Marin IJ reported. The investigation by the Marin County Sheriff's Office and its coroner's division was ongoing in the Oct. 13 reports.

If you or someone you know is affected by domestic violence, call the National Domestic Violence Hotline at 800-799-7233 or visit thehotline.org.

If you are having suicidal thoughts, call or text 988 to reach the 988 Suicide & Crisis Lifeline.