47-year-old Adam Dimmerman was arrested on a murder charge Thursday following a homicide in Encino and an assault in the Reseda area, Los Angeles Police Department officials said.

Jason Shakib told KTLA at the scene that his 102-year-old grandfather, Youssef Mahboubian, was the victim of the homicide. LAPD had earlier described the victim as being 100 years old.

“I had no idea there was a guy with a machete running around killing people,” Shakib said, adding that his grandfather was found stabbed and hacked to death in his own home’s garage. “He came to this country from Iran decades and decades ago and they’ve been living peacefully at Alonzo Place for 30 years.”

About 11:40 a.m. police were called to Vanowen Street and White Oak Avenue in the Reseda area for reports of a man armed with a hatchet, Officer Drake Madison told KTLA. Officers found a 34-year-old man with a laceration to his arm. He sustained minor injuries that did not require treatment, LAPD said in a news release.

About 12:50 p.m., police responded to the 17700 block of Alonzo Place in Encino for another report of a man armed with a hatchet, and officers found a homicide victim at the scene, Madison said. Police later said the victim was an elderly man found inside his home with numerous contusions and lacerations.

Officer Jader Chaves told KTLA that the homicide was related to the earlier call, but did not elaborate on the victims nor the circumstances of either incident.

Police said Thursday night Dimmerman — who was arrested earlier for the Reseda assault with a deadly weapon — was booked on a murder charge for the Alonzo Place homicide. Bail was set at $2 million. An axe and a knife were recovered at the scene, LAPD officials said.

Anyone with information is urged to call Detective Steve Castro at (818) 374-1925. During non-business hours, or on weekends, calls should be directed to 1-877-527-3247. Anyone wishing to remain anonymous can call the L.A. Regional Crime Stoppers at 1-800-222-8477 or go directly to www.lacrimestoppers.org.