A 25-year-old Hilo man who was shot and killed by a Hawaii County police officer Monday afternoon was armed with a knife and lunged at the officer, police said Tuesday.

The man was identified Tuesday as Kalyp Rapoza.

The officer “tried to convince and engage with Mr. Rapoza,” said police Lt. Greg Esteban. “He ordered him to drop the knife and secure his dog. Shortly thereafter, Rapoza allegedly lunged at the officer with the knife, and with the canine with him. That’s when he discharged the weapon.”

Police said the officer shot and killed both Rapoza and his dog.

Esteban said an acquaintance of Rapoza’s had called for medics, who responded to the man’s residence. The medics were confronted by Rapoza’s pit bull, which prompted them to return to their vehicle and request police to respond as well.

Esteban declined to say who the medical call was for, citing privacy concerns. Rapoza lived in a structure at 43 E. Kawailani St. but not in the main house, police said.

An autopsy is scheduled for today to determine his exact cause of death. Police have also ordered a necropsy to determine the exact cause of death of Rapoza’s pit bull.

The officer who fired his gun has been with the Police Department for three years. He was uninjured, and has been placed on administrative leave as is department policy whenever a firearm is discharged. Also in keeping with standard practice, police are conducting a criminal investigation and an administrative investigation into the shooting.

In May 2015 police arrested Rapoza for allegedly threatening neighbors on April 23, 2015. He was charged with first-degree terroristic threatening. That case was dismissed.

Earlier this year, in a case involving criminal contempt, Rapoza was ordered to undergo an examination by a doctor to determine his fitness to stand trial.

According to court records, a May 31 hearing on the doctor’s report was scheduled, but no record of that hearing taking place was indicated. Rapoza’s lawyer could not be reached for comment.

According to the state Judiciary’s online database, Rapoza was convicted of second-degree burglary and promoting drugs, a Class C felony. He also was convicted of six petty misdemeanor and misdemeanor crimes.

On his Facebook page, Rapoza’s friends expressed grief upon learning of his death.

“You were such a good friend to me and was always there for me, I wish I could’ve done more to help you,” posted Pua Gager-Wellman. “At least now you’ll be in a better place. … You will be missed.”

Kuahuia Naehu Quinton wrote, “Today marks the day I found out my friend got shot. I will forever miss you.”