KETCHIKAN (KDN) — The trial by jury of Tyler B. Cavanaugh, 24, on two counts of second-degree murder and one count of manslaughter regarding the July 17, 2020, death of Peter A. Jensen in Ketchikan began Tuesday in Ketchikan Superior Court.

Ketchikan Superior Court Judge William Carey is presiding over trial, which is scheduled for 10 days.

Cavanaugh was 22 when Jensen, 43, was found with extensive head injuries within a residence on the 400 block of Carlanna Lake Road early in the morning of July 17, 2020.

 Jensen’s spouse reported that Jensen was unresponsive on the floor, according to court documents. Ketchikan Police Department and Ketchikan Fire Department responders found that the injures appeared to have been caused by blunt force trauma, according to a KPD announcement. Life-saving measures were unsuccessful.

The residence was shared by Jensen, Jensen’s spouse, and Cavanaugh, who is the spouse’s son, according to court documents. Jensen’s spouse and Cavanaugh were contacted at the scene. Search warrants were obtained to search the residence, and the two residents.

A KPD statement issued on July 20, 2020, said that “based on the scene investigation, it was apparent that a violent physical altercation had occurred which had led to the death of Mr. Jensen.”

The probable cause statement in the case alleges that Cavanaugh was found with a large amount of blood on his hands and feet. Cavanaugh’s right hand was “observed to be extremely swollen,” items of bloody clothing, socks and shoes that appeared to belong to Cavanaugh were found in the residence.

According to the probable cause statement, Cavanaugh told KPD Lt. Andy Berntson that Cavanaugh had returned to the residence and an altercation with Jensen had ensued. Cavanaugh allegedly said that he struck Jensen three times in the face with a closed fist, after which Jensen fell backwards onto his bed and remained there when Cavanaugh left the room.

Jensen’s spouse said she had been asleep in another room, according to the probable cause statement.

A Ketchikan Grand Jury initially indicted Cavanaugh on two counts of second-degree murder — intend serious injury; one count of second-degree murder— extreme indifference; and one count of manslaughter.

The prosecution in May dismissed one count of second-degree murder—intend serious injury.