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.

pic.twitter.com/ypwcCFMrEQ

— Alex Mercer (@IV_Mercer) May 1, 2015

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."

My only regret in life is not killing @rihanna in Jesus name that time she came over in 2011 to Pah Pah house — Alex Mercer (@IV_Mercer) May 6, 2015

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

 Same gun I shot Tito Jackson and Michael Jackson I shot @chrisbrownofficial with it to after at a price chopper when I was little My grandpa James Gadson gave it to me after the whole Jackson family came over and wanted me to shoot them for the recognition of getting shot by me @janetjackson

A photo posted by Alex Mercer (@alexmerceriv) on May 10, 2015 at 6:15pm PDT

Imma get @Rihanna with somebody sense she dumped me — Alex Mercer (@IV_Mercer) May 11, 2015

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

Think I'm married to @rihanna heard God speaking to me the whole time the marriage going on and the divorce — Alex Mercer (@IV_Mercer) May 30, 2015

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

Imma marry @rihanna Lord willing s#omebody might die or somethin — Alex Mercer (@IV_Mercer) June 8, 2015

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."