The incident, as reported by the local authorities took place on Thursday, in Texas.
The Hays County police said they received a call reporting an aggravated assault at a Kyle home Villaneueva and her family moved into only one week ago.
When police arrived at the scene, they found the father in law Eustorgio Arellano-Uresti in the driveway with multiple stab wounds. The 58 year old told the police how the daughter in law stabbed him and that she was inside with her daughter.
Police found the 24 year old,villaneueva getting out of the shower and her 5 year old daughter ,Giovanna Hernandez dead in a bedroom
“This is one of the worst cases I’ve ever seen,” Sheriff Gary Cutler said. “The suspect has had minor issues with law enforcement in the past, nothing major.”
Arellano-Uresti told officers that at around 11 a.m. he walked into the kitchen to make lunch when he saw Villanueva take a knife to a back bedroom. He then heard the child crying.
Authorities said they believe at this time Villanueva was stabbing her daughter. The mother then returned to the kitchen and began stabbing her father-in-law in the back and forehead as he tried to grab the knife, the affidavit said.
Villanueva has also been charged with aggravated assault, a second degree felony.
Arellano-Uresti is expected to recover.