Former Londonderry officer faces manslaughter, negligent homicide charges in April fatal crash

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Former Londonderry Police Officer Tyler Berry pictured here working the scene of a suspicious death in Londonderry hours before the crash in Londonderry that resulted in the death of Sierra Croteau of Manchester. Officer Berry has been indicted for manslaughter in that crash. File Photo/Jeffrey Hastings,

MANCHESTER, NH — A former Londonderry police officer is facing manslaughter and negligent homicide charges in the death of a Manchester woman after an April 5 head-on crash on Route 101 in Amherst.

A Hillsborough County Superior Court North grand jury indicted Tyler Berry, 27, of 109 Souhegan Road, Amherst, on two counts of manslaughter, two counts of negligent homicide, and two counts of reckless conduct. 

Sierra Croteau, 21, was driving east on Route 101 about 11:30 p.m. on Friday, April 5, when Berry, operating his 2018 GMC pickup west collided head-on with Croteau’s 2008 Hyundai Santa Fe.  Croteau died at the scene, the result of blunt impact to her body, according to indictments.

Berry also was indicted on a charge of criminal mischief, alleging he caused more than $1,500 in damage to Croteau’s car.  He also was indicted on one count of falsifying physical evidence for refusing to submit to a blood draw authorized by a search warrant.

Berry, who also was injured in the crash, originally was arrested on a charge of aggravated driving while intoxicated.

He was not on duty the night of the crash.  Londonderry Police Chief William Hart, asked Friday what Berry’s employment status was, said he is no longer employed by the police department.

If convicted of manslaughter, Berry faces a sentence of from 15 to 30 years in state prison.  Negligent homicide carries a sentence of 3 1/2 to 7 years in prison.

At the time of her death, Croteau was working as a licensed nursing assistant at Bright Care of Bedford.