Mom killed in murder-suicide by ex-NYPD cop husband seen beaming in gut-wrenching family snap

A gut-wrenching family photo shows the Westchester County teacher who was gunned down by her retired NYPD detective husband in a murder-suicide this week smiling with her kids – as friends remember the mom-of-three as “truly remarkable.”

Arlene Connolly O’Neill, 47, is seen posing with the couple’s three sons at a baseball game in a beaming family snap on her Facebook page.

O’Neill – who worked as a fifth-grade teacher at Anne Hutchinson School in the Eastchester Union Free School District – was shot multiple times by her husband, Sean O’Neill, at their Chittenden Avenue home in Yonkers Wednesday morning.

Sean O’Neill, 54, then shot himself once in the head, the local police said.

The couple’s sons – ages 15, 13, and 11 – were home at the time of the shooting, but were not physically harmed, the police added.

A GoFundMe in Arlene O’Neill’s memory remembered the veteran teacher as “a truly remarkable individual: a dedicated, hard-working teacher for over 25 years in the Eastchester School District, a fearless mother, a thoughtful sister and a kind friend.”

“Arlene has spent countless hours shaping the minds of her students, all while raising her three incredible boys…who were her greatest pride and joy,” the tribute read.

“Arlene exemplified strength, kindness, and resilience. She poured her heart into both her classroom and her home, always putting others before herself.”

Any proceeds from the GoFundMe will go to the O’Neill boys’ education and “their talents in both music and sports that Arlene worked so hard to encourage and support,” the page said.

As of Thursday morning, the fundraiser had raked in nearly $18,000 of its $75,000 goal.

If you are struggling with suicidal thoughts or are experiencing a mental health crisis and live in New York City, you can call 1-888-NYC-WELL for free and confidential crisis counseling. If you live outside the five boroughs, you can dial the 24/7 National Suicide Prevention hotline at 988 or go to SuicidePreventionLifeline.org.