Huffington Post -- In 2008, Rosales first claimed she killed her 2-year-old nephew Eliseo Jr. when she accidentally rolled over and crushed him under her 1,100 pound frame, but Valdez knew something else was going on.

In the special, Rosales now says she saw her sister use a brush to hit Eliseo repeatedly on his arms, legs and head, and Valdez said she took the blame so that her sister's other kids would still have a mom.