A 15-year-old boy killed his grandmother and stabbed his mom — who was helped by a passing driver after she fled the gory scene of their Lengthy Island house Monday evening, in accordance with police.
The teenager’s mom, 36-year-old Vanessa Chendemi, ran out of their Selden house after she’d been stabbed by her son round 9:45 p.m., flagging down a motorist and calling 911 as soon as she was of their automobile, in accordance with the Suffolk County Police Division.
When cops arrived on the residence on 802 Outdated City Street, they discovered the teenager’s grandmother, 56-year-old Concetta Chendemi, with a number of stab wounds.
She was pronounced useless on the scene.
Vanessa Chendemi was taken to an space hospital in steady situation.

The teenager, who has not been recognized by authorities on account of his age, fled the scene after the stabbings.
Cops tracked him down and took him into custody lower than half a mile away close to Dare Street and Buckskin Lane in Selden round 11:22 p.m.
He’s charged with second-degree homicide and tried homicide and is scheduled to be arraigned at First District Courtroom in Central Islip Tuesday.
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