She was separated from her husband and in the process of a divorce. Her then-boyfriend told authorities they had a disagreement and that he dropped her off on the side of FM 173/FM 2146 near Jourdanton; another person reported seeing her walking in that area. She was wearing a black fitted shirt and blue jeans and may also use the surname Villarreal.

Longoria was officially reported missing on March 10, 2014. Her four children were cared for by their grandmother after her disappearance. Family members and investigators consider foul play a possible factor, and the Atascosa County Sheriff’s Office has pursued multiple leads that reportedly ended in dead ends. In January 2025 the Atascosa County Crime Stoppers announced a $5,000 reward for information leading to her whereabouts or identifying those responsible.

If anyone saw Michelle in the Jourdanton area around late January or early February 2014, or has information about her whereabouts or the people she was with, please come forward.