NBCUniversal Exec's Death Ruled a Homicide

Brian Russell Kaplon was shot by a childhood friend at a St. Patrick's Day party.

Authorities have determined that the March 18 death of NBCUniversal financial executive Brian Russell Kaplon, 32, was a homicide.

Kaplon, who worked as a director of digital distribution finance at the company's Burbank offices, was attending a St. Patrick's Day party at childhood friend David Andrew Armstrong's Porter Ranch home, the LA Times reports. Near the end of the evening, Kaplon and Armstrong were in the garage when Kaplon was fatally shot in the chest with a military-style rifle.

"Both of the men were in the garage with a rifle when one man shot and killed the other man. There are no other witnesses," LAPD Deputy Chief Kirk Albanese told the Times. "The other man made a statement that was taken into consideration before it was determined to be a homicide."

The death was originally ruled an accident caused by the mishandling of an AR-15 rifle, one of the many guns Armstrong was reportedly showing Kaplon before the incident.

Armstrong was arrested Thursday in connection with Kaplon's death.