Christina Grimmie Killer: Scary New Details Emerge

Loibl is the man who approached Christina Grimmie after a concert she put on in Orlando last Friday night.

According to various outlets and eye witness accounts, Loibl pulled out a gun upon getting close to the former Voice contestant and shot her dead.

Others in the vicinity may also have been Loibl's victims if not for Grimmie's brother, Marcus, who wrestled the shooter to the ground prior to Loibl turning the gun on himself and pulling the trigger.

It was a heinous, unspeakable, incomprehensible crime.

We may never know what motivated Loibl to take Grimmie's life, but TMZ has uncovered disturbing new pieces of information about the killer.

According to former co-workers, Loibl was a deranged fan of the singer’s.

He was infatuated with Grimmie, listening to her music at work and claiming he would someday be her husband.

But that’s not all:

Loibl also changed his appearance to be more appealing to the artist. He reportedly got hair transplants. He underwent Lasik eye surgery. He became a Vegan in order to lose weight.

We're talking really scary stuff here.