NBC NATIONAL NEWS — The man accused of killing seven people at a small college in Oakland, California is being described as "not particularly remorseful".

Authorities have that man in custody and say he's a former student who was upset with administrators and students at the college.

He's identified as Wan Goh, 43.

He is a former nursing student who was expelled from the school earlier this year for reasons that weren't immediately clear, but investigators are looking at for a possible motive.

Gunshots from Monday's shooting can be heard in a cell phone video as the chaos ensued.

Witnesses described the scene as horrific as the gunman entered and opened fire.

All the victims with the exception of a secretary at the school were all students at the university.