Sneak Peek! A Look at the Extreme Weight-Loss Journey in 'Half-Ton Killer: Transformed'

The upcoming TLC special "Half-Ton Killer: Transformed" follows Mayra Rosales, one of the heaviest women alive, who after being acquitted of murder began a journey to lose over 700 pounds!

Check out this clip from the special.

"Half-Ton Killer: Transformed" premieres Wednesday, December 4th at 9 PM on TLC.