MADISON, Wis. -- The man in custody in connection with a deadly hit-and-run over the weekend could face some of the stiffest penalties possible for the crime in recent years.

VIDEO: Watch The Report

Justen Brock, 30, of Mount Horeb is in custody on tentative charges of hit-and-run resulting in a death.

The Dane County Sheriff's Department said Brock allegedly hit Gregory McCullick, 20, early Sunday morning on Dairy Ridge Road in the town of Springdale, and left his Chevy Blazer in a wooded area in the town of Black Earth.

Brock will be one of the first prosecuted in Dane County under a law that was changed after a similar hit-and-run fatality.

Bonnie Stamm lost her daughter Aimee Kubler on a road near Mount Horeb back in 2002 when a 30-year-old Mount Horeb man hit her while she was jogging.

After Kubler's death, Stamm joined together with other victims' families to push for a law that changed the penalties for those who flee the scene after hitting someone.

"We decided we had to be proactive and change the law because the sentencing for that was only six years for leaving the scene and not rendering aid," Stamm said.

The sentence can now be up to 25 years in prison, WISC-TV reported.

The first sentencing under this law will be in a couple of weeks for Daniel Banks. He was involved in a motorcycle chase last July were James Hammer, 49, of Madison was killed, and Banks fled the scene.

He'll be sentenced on Aug. 17, WISC-TV reported.

The Sheriff's Department enlisted citizen help in finding both the car and the suspect in the Springdale hit-and-run. They used a reverse 911 call to look for Brock's Chevy Blazer Tuesday.

A Black Earth man discovered it in a wooded area near his house after the call went out.