Rihanna Stalker Posed for Photo Outside Her Home: Sent Anti Singer Masturbation Video

Rihanna was being stalked by a man named Ralph Alexander, who wrote on Twitter about marrying the singer and also posted death threats. It has now been revealed that the troubled man, who is now in a psychiatric center, also sent RiRi a video of himself masturbating.

Police began investigating the man, who goes by the names Ralph Alexander and Alec Mercer on Twitter, on April 30 after he posted a selfie outside Rihanna's Los Angeles mansion. He had captioned the image, "Outside yo house."

The man was gone before police arrived on the scene.

The alleged stalker also made a death threat on social media, writing "Should of killed @rihanna a minute back I would be good right now."

He also tweeted about guns during the same time frame, even claiming to have shot Tito Jackson and Michael Jackson.

The man also claimed he had married Rihanna, also apparently planning to divorce her.

Alexander tweeted in early June about marrying the singer again, adding that someone could die in the process.

TMZ reports the search warrant shows police discovered the alleged stalker also sent Rihanna a masturbation video. The stalker is reportedly in a psychiatric hospital.

Rihanna has also been in the news after her album was leaked last week. Spin reports that Tidal's marketing director blamed a "system error caused by Universal Music Group. The error was not something Tidal caused."