Police said Mark A. Beilby, age 24, refused to drop a knife as he came toward police and was shot in self defense by officers. (Photo from the NYSP)

UNADILLA – On December 22, shortly after 7 p.m., New York State Police at Sidney were dispatched to a report of a domestic dispute at a residence on Lyons Street in the Village of Unadilla.

The responding trooper was confronted by Mark A. Beilby, age 24, who was armed with a knife inside the home. Beilby did not comply with the trooper’s repeated commands to drop the knife and advanced at the trooper. 

The trooper discharged his issued firearm, striking Beilby. 

Beilby was transported to Tri-Town Hospital then transferred to Wilson Medical Center where he was pronounced deceased. 

The New York State Attorney General’s Office is investigating the incident pursuant to Executive Law Section 70-b in conjunction with the New York State Police.

– Information from the NY State Police