Erin Andrews -- Emailer Talks 'Suicide Vest'

TMZ has more information on the emails a Newport News, Virginia man sent to ESPN's Erin Andrews ... and it's scary.

TMZ broke the story that sexual as well as violent emails targeting Erin have been sent to "The Dan Patrick Show" since last September.

Law enforcement sources have given TMZ specifics about the threats to Erin, who is currently a contestant on "Dancing with the Stars."

March 29, 2010 -- "Dear Dan: I hope Erin Andrews gets murdered in L.A."

March 26, 2010 -- "I hope she gets shot in the face. I would love to see if she can dance away from a hail of gunfire. That would really make my day."

March 14, 2010 -- "I would love to get close enough to her to show her my suicide vest."

And, sources say, there are emails that pose even more of a direct threat to Erin.

We are told the FBI knows the identity of the man who sent the emails. In fact, the man didn't even try hiding his identity in the emails.