GRAYSON COUNTY, Texas (KTEN) — Seven victims came forward to help convict Joe Cortez, who was sentenced by a Grayson County jury Thursday to 80 years in prison.

The 55-year-old Denison man was found guilty of one count of continuous sexual abuse of a child, three counts of aggravated sexual assault of a child, and nine counts of sexual assault of a child.

Grayson County Assistant District Attorney Michael Sissney said the abuse by Cortez took place over two decades.

"He's got a long history of it with several victims," Sissney said. "He was throwing party for kids that didn't have a lot of parental supervisions. At these parties he was giving these kids weed, alcohol, and also was giving these kids what he would called 'party pills,' and it turned out to be Ambien."

Prosecutors said after putting boys to sleep, Cortez would rape them.

Cortez essentially received a life sentence, because he will not be eligible for parole.