Half ton killer Mayra Rosales who falsely confessed to killing nephew loses 800lb

A 1,lb woman, once dubbed the 'half-ton killer' after she falsely confessed to accidentally killing her nephew, has lost lb. Mayra Rosales, from Texas, said she had given up on life when she decided to protect her sister Jamie and take the blame for the death of her nephew Eliseo in Rosales, 34, told police she had smothered the child by rolling on top of him, a claim later disproved when autopsy results revealed the boy had died from multiple injuries to his skull. After her sister Jamie confessed to the crime and was sentenced to 15 years in prison, Mayra vowed to get healthier to take care of her sister's surviving children. Scroll down for video.