LEXINGTON COUNTY, SC — The 19-year-old who shot and killed his 56-year-old neighbor through a window Wednesday morning was upset about a dispute involving the recent death of his dog, according to Lexington County Sheriff’s Department detectives.

Jeffrey O’Neal Kight Jr., 19, of 111 Emma Drive, Lexington, fatally shot William Rush Falls, 56, also of Emma Drive, detectives said.

Kight fatally shot Falls at about 6:49 a.m. Wednesday while Falls was standing in the kitchen of his home, arrest warrants allege. Kight allegedly fired one round from a shotgun while standing outside Falls’ home in front of a glass window on the side of the residence, the warrant states, and the shotgun round penetrated the glass window and struck Falls in his neck and face.

Falls’ home surveillance camera allegedly captured pictures of the suspect outside the home, Sheriff James Metts said on Thursday.

The exact nature of the dispute concerning the dog’s death remains under investigation, according to the sheriff’s department. The dog died after being hit by a motor vehicle on Old Barnwell Road near Lexington.

Kight has been charged with murder and possessing a weapon during the commission of a violent crime. He is being held at the Lexington County Detention Center.

After executing a search warrant at Kight’s home, detectives found one shotgun and one expended shotgun shell in his bedroom, Metts said. Ballistics tests will be conducted to determine whether the shotgun was used in the shooting.