In Jan. 2012, she was acquitted of the 2008 murder of her nephew, Eliseo, which she allegedly did when she accidentally rolled over and crushed him under her 1,028-pound frame.
Next, she decided to lose as much of the weight as possible.
Her life since her acquittal is now the focus of a new documentary, "Half-ton Killer: Transformed," debuting Dec. 4 on TLC.
Since the acquittal, Rosales has turned over a new leaf and went on a strict weight-loss regimen and is now down to nearly 200 pounds.
"A lot of it is the diet," she told Access Hollywood. "I'm eating healthy food. Everything is measured by a dietician."
TLC is trying to keep Rosales' new appearance a secret until the show debuts, but an image which appeared on her Facebook page offered a sneak-peek.
