Lane Garrison domestic violence arrest: Now there's video

As previously reported, "Prison Break" actor Lane Garrison was arrested on Sunday, April 22 on suspicion of domestic violence against ex-girlfriend Ashley Mattingly. A security camera caught the incident. Warning: This is very difficult to watch.

TMZ posted a video that shows Garrison slapping Mattingly in the face at her apartment building. The couple can be seen arguing in the elevator and then in a physical fight in the lobby.

Garrison's attorney Harland Braun explains that he was at her apartment building to dog sit for a friend. He claims he didn't hurt Mattingly. Bail is set at $50,000 and Garrison is on parole hold because of a previous manslaughter conviction.