Dana Martin really is obsessed with Justin Bieber and it's starting to freak us out. From the clink, Martin devised a creepy plan to kidnap, kill and castrate Bieber after a show at Madison Square Garden in NYC and even recruited someone on the outside to help him carry the order out.

The cops foiled the scheme, but it turns out Martin is still plotting to hurt the teen star and his fans.

Oh hell no!

Martin, who is such a vile criminal that he is serving two life sentences in New Mexico, has been moved to solitary confinement and saw his communications privileges revoked after revealing his plan to blow up one Da Biebs' shows.

He revealed his plans via a letter sent to a TV station.

The fact that he is so brazen about his plans makes us wonder how serious he really is. Even so, this has to have Bieber's security detail on high alert. It's creepy stuff.

In his note, he wrote (via WENN):

Arranged for another hit man. This new hit man will place an explosive device… at a live performance, killing everyone on stage and quite a few in the audience.

So he is targeting Beliebers, too. That's just wrong. This dude is beyond sick. Luckily, the prison officials and authorities are investigating.

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