Charlie Sheen suspects Viewpoint School's people threaten his daughters with a knife

Charlie Sheen is still angry at the Viewpoint School.

He told TMZ that his nine-year-old daughter's former L.A. private school had sent some people to leave a note with a knife jammed into a tree outside his daughters' home.

The former Two and a Half Men star said that the note was filled with angry messages and threats directed to his family.

He said he saw two people in the act, captured in the surveillance camera, and he had contacted the police for it.

Sheen also said that the school previously sent other people to terrorize his former wife, Denise Richards, and his two daughters.

Charlie Sheen urged his fans to send dogs' excrement on his daughter's former school after his daughter revealed that she was bully and called a liar by the school, The Daily Mail reported.

His daughter Sam was picked on by a schoolmate named Victoria, who teased her a lot of about her looks and how Sheen was fired from Two and a Half Men.

As a result of constant bullying, she said she was too sick to attend school, and to discuss the incident with her mother, Denise Richards. Even though she did finally talk about it, nothing was done. Sam was even called a liar by Victoria's parents at one of the meetings.