Retired NYPD Detective Commits Murder-Suicide in Westchester

Sean O'Neill fatally shot his wife, Arlene O'Neill, before turning the gun on himself, leaving their three children unharmed.

Sean O'Neill, 54, a former NYPD detective, shot his wife, Arlene O'Neill, 47, multiple times before committing suicide at their Yonkers home.
The couple's three sons, aged 15, 13, and 11, were present during the incident but were not physically harmed.
Arlene O'Neill was a dedicated fifth-grade teacher at Anne Hutchinson School in the Eastchester Union Free School District.
The Eastchester School District has mobilized crisis teams to support students and staff in the wake of the tragedy.
A GoFundMe page has been set up to support the children's education and extracurricular activities, raising nearly $18,000 so far.