PORTLAND, Ore. (KOIN) — A government official identified Christopher Harper Mercer, 26, as the gunman responsible for killing 9 people and wounding at least 7 others at Umpqua Community College on Thursday.

Officers responded to reports of an active shooter at the school around 10:40 a.m.

Douglas County Sheriff John Hamlin said authorities exchanged gunfire with Mercer in a classroom. He was pronounced dead at the scene.

A neighbor of the 26-year-old shooting suspect said he “seemed really unfriendly” and would often sit by himself on a dark balcony.

The shooter and his mother reportedly lived in Torrance, California for several years before moving to Oregon. Neighbors said they often kept to themselves.

The Los Angeles Times said one thing stood out to neighbors in Torrance: they sometimes noticed the mother and son carrying black cases that appeared to hold firearms.

David Westly, 45, told the LA Times Mercer and his mother were asked about the weapons at a community barbecue. According to the neighbor, Mercer didn’t respond to the question, but said he enjoyed target shooting.

The suspected shooter’s father, Ian Mercer, spoke to Los Angeles media outside his home on Thursday night.

“I’m just as shocked as anybody at what happened,” he said. “I’ve just been talking to the police and the FBI, really what I know is what you guys know already.”

A Myspace page supposedly belonging to the shooter displays a photo of him holding a gun.

The 26-year-old’s stepsister told CBS Los Angeles he was born in England and traveled to the U.S. as a young boy.

Mercer’s 17-year-old cousin told CBS LA he used to have a temper when they played together as children.

An online dating profile on the website Spiritual Passions appears to belong to the shooter. It lists his hobbies and interests as “internet, killing zombies, movies, music, reading.”

The profile lists his education level as “currently in college” and implies that he lived with his parents.The Associated Press contributed to this report