GRAYSON COUNTY, Tex. (KXII) - A Grayson County man found guilty of child sex crimes last week will serve a longer sentence than initially thought.
It took a jury about 8 hours to find Charles Marshall guilty last week.
Now a judge has decided to stack his sentence.
Prosecutors say video testimony of an incident years ago proves that he deserves it.
Last week Grayson County jurors found 20-year-old Charles Marshall guilty of sexually assaulting a child three years ago and indecency with a child.
The victim said she was 15 when Marshall, who was 17 at the time, raped her.
"He has to serve sexual assault charge before indecency with a child," said Asst. District Attorney Matt Johnson.
The judge decided Marshall will have to serve both sentences back to back-- a total of 16 years.
But jurors also heard testimony about a previous incident eight years ago in which a girl claims she was seven years old when the then 12-year-old Marshall raped her.
"He denied that adamantly until police said they had evidence," said Asst. District Attorney Britton Brooks.
In police video Marshall starts out denying the allegations.
"If I was guilty of something, I wouldn't have come. I'm not guilty of anything," Marshall said in the video.
Until police said they had DNA evidence.
Eventually Marshall confessed to having intercourse with the victim--and it happened more than once.
"Less than five times," Marshall said.
Prosecutors said that video was instrumental in proving to the jury in the most recent case that Marshall has a history of sexual assault.
They said the stacked sentence should send a message to sexual predators in the county.
"They won't tolerate predators in Grayson County, Texas," Brooks said.
Both charges meant a maximum of 20 years.
Marshall will have to register as a sex offender for the rest of his life.