Johnny Depp testifies on his ex-wife's 'need for violence'

• Johnny Depp is suing his ex-wife, Amber Heard, for defamation.
• In an op-ed in The Washington Post, Heard claimed she was the victim of domestic abuse.
• Depp talked about an altercation with Heard from 2015 that resulted in his severed finger.

Johnny Depp has taken the stand against his ex-wife, Amber Heard, for defamation. Heard has accused Depp of domestic violence, but Depp says he was a victim of the same.