VIDEO: Sneak Peek - Heaviest Woman Alive Featured on TLC's HALF-TON KILLER: TRANSFORMED, 12/4

In 2008, Mayra Rosales was famous for being one of the heaviest women alive, embattled in one of the most controversial and publicized murder trials in history. Since her acquittal of her nephew's murder, Mayra has begun taking the necessary steps to save her own life by attempting to lose a huge amount of weight in order to fulfill the dream of adopting her nieces and nephew.

Last year, TLC explored Mayra's shocking murder mystery case in HALF-TON KILLER? and on Wednesday, December 4th at 9/8c, the network will air a follow up hour, HALF- TON KILLER: TRANSFORMED documenting her Extreme Weight Loss journey. Get a sneak peek below!

After enduring countless ground-breaking surgeries, hours of physical therapy and extensive rehabilitation, Mayra is able to lose an astounding amount of weight, and has earned a second chance at life. However, learning how to live and cope with her newfound independence presents several new challenges. At 32-years old, everyday tasks such as buying groceries, job hunting and shopping for clothes are completely alien experiences to Mayra. Each step takes an enormous amount of willpower and patience, but adjusting to her new life is a battle she must conquer in order to prove that she's capable of not only caring and providing for herself, but her nieces and nephew as well. For Mayra, the real journey begins here.

TLC's HALF-TON KILLER: TRANSFORMED premieres Wednesday, December 4th at 9/8c. The special is produced by Meglaomedia, Inc.