Charlie Sheen has been accused of sending a death threat. A man who claims to be a former associate of the 'Anger Management' star filed a police report in Los Angeles on October 18, alleging he is afraid the actor will murder him, based on a text message sent to a mutual friend. The man said he had recently fallen out with Charlie and claims the actor later sent a text to a female pal that read: "I'll blow his head off with my Super 90." The case is currently under investigation, and officers are planning to speak to the 47-year-old actor about the claims very soon. While Charlie hasn't commented on the accusation, a friend has claimed the man is looking for money. The source told gossip website TMZ.com: "The accuser is a dishonourably discharged military person with multiple probation violations who is trying to shake him down for money." The news comes a few weeks after it was claimed Charlie - who has been in rehab five times and last hit the headlines for his extreme behaviour in 2011 - has been spending up to $2,000 a day on cocaine over the past eight months.