SOUTH SALT LAKE — An alleged intruder who was armed with a knife was shot and killed when a homeowner confronted him Friday night.

Police were called to the home, near 3730 S. 200 East, at about 8:30 p.m., after a homeowner reported hearing a noise in his back yard. The homeowner told police he went to investigate and was confronted by a man with a knife, according to South Salt Lake police Sgt. Gary Keller.

Keller said the "confrontation quickly escalated" and the man, 68-year-old David Antonio Trujillo, was shot and later pronounced dead. Police did not release the name of the homeowner.

Police say the homeowner is cooperating with the ongoing investigation. It remains unknown why Trujillo was armed with a knife and in the back yard of the residence where the shooting occurred.

No arrests have been made and upon completion of the investigation, the case will be turned over to the Salt Lake County District Attorney's office for screening.

—Wendy Leonard