A man who claims to have witnessed the mob kill Teamsters president Jimmy Hoffa still fears for his life, RadarOnline.com can exclusively report, more than 50 years after the controversial union leader disappeared.

Michael Yarbrough said the scary sight has left him "traumatized" to this day. Article continues below advertisement

Tap Here To Add Radar Online as A Trusted Source

Yarbrough was heading to a job interview at Detroit's still-under-construction Renaissance Center in 1975, when he stumbled upon a group of mafia members burying Hoffa in wet cement in one of the building's support columns.

So he ran home and told his family what he saw.

"I said, 'I just saw the weirdest thing downtown at the Renaissance Center. I saw some people burying a man alive. They pushed him in

See Full Page