Suffolk County Police arrested a 15-year-old boy who they claim stabbed his mother and fatally stabbed his grandmother in Selden.
Law enforcement said that after being stabbed by her son, Vanessa Chendemi ran out of her house, located at 802 Old Town Road, at approximately 9:45 p.m. on Monday, April 7th.
A passing motorist stopped to offer assistance, Chendemi got into the vehicle, and then called 911 to report the incident, according to Suffolk County Police.
When officers arrived at the scene they found Concetta Chendemi, 56, inside the residence with stab wounds. She was pronounced dead at the scene by a physician assistant from the Office of the Suffolk County Medical Examiner.
Vanessa Chendemi, 36, was rushed to the hospital in stable condition.
Cops claimed the 15-year-old fled the scene after the stabbing.
Officers canvassing the area arrested the boy at Dare Road and Buckskin Lane in Selden at 11:22 p.m.
Homicide Squad detectives charged the boy, whose name is being withheld due to his age, with second-degree murder and attempted murder.