Boy, 15 fatally stabs grandmother, wounds mother in Selden, Suffolk County police say

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Tuesday, April 8, 2025
Teenager charged with stabbing his mother and grandmother: police
Chanteé Lans has the latest on the stabbing in Selden, New York.

SELDEN, Suffolk County (WABC) -- A 15-year-old Suffolk County boy has been arrested on charges he killed his grandmother and wounded his mother on Monday night.

Suffolk County police say Vanessa Chendemi, 36, ran out of her home in Selden seeking help after being stabbed around 9:45 p.m.

A passing motorist stopped to offer assistance. Chendemi got in the vehicle and called the police.

Officers arrived at the home to find Concetta Chendemi, 56, dead from stab wounds to her chest, stomach and leg.

Vanessa Chendemi was taken to the hospital in stable condition and is expected to be OK.

She told police she survived after pretending to be dead.

The 15-year-old fled the scene only to be captured by officers an hour-and-a-half later in the area of Dare Road and Buckskin Lane.

Police say two knives were recovered and officers talked about a possible motive.

"It looks like there was an argument over some content on his computer," said Suffolk County Homicide Squad Det. Lt. Kevin Beyrer.

The boy is charged with 2nd degree murder and attempted murder. His name is being withheld because of his age.

His attorney spoke briefly outside court on Tuesday.

"The only thing I'm going to say, thisis a 15-year-old child here and he is presumed innocent, we have a presumption of innocence in America that still holds strong so I want everybody to remember that," defense attorney Pete Mayer said. "Other than that, I have no comment right now."

Mayer said the 15-year-old will likely be prosecuted as an adult


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