Evidence ties Janesville man to beating
Dustin L. Sperb, 21, of 440 N. Parker Drive, Janesville, also is likely the contributor to a DNA mixture found on the woman’s pubic region, according to the criminal complaint.
A New York Yankees baseball cap Sperb wore that night also was found in the woman’s home, according to the criminal complaint.
Sperb, who appeared in Rock County Court on Friday, voluntarily gave investigators his T-shirt and DNA for analysis at the state crime lab, according to the criminal complaint.
Sperb was held in the Rock County Jail on $40,000 cash bond on felony charges of first-degree sexual assault and aggravated battery.
He is suspected of beating Sandra L. Cole, 47, of 3119 S. Old Highway 11, No. 35, Orfordville, on May 10 in her home in Country Courts Trailer Home Park.
Cole is no longer on life support and is recovering in a Milwaukee area rehabilitation center, investigators said.
According to the criminal complaint:
Sperb was drinking beer and brandy at a bonfire in the trailer park on the night of the attack. He was wearing a Yankees baseball cap.
Several people at the bonfire told investigators Sperb was intoxicated. He grabbed a woman’s 18-month-old son and walked through the fire, angering everyone.
He flirted with a woman. He had a confrontation with a man. He couldn’t stand straight.
Witnesses told investigators Sperb left the fire and was gone for a couple hours.
Sperb told detectives he walked away from the fire, began vomiting and passed out. He said he awoke on a friend’s couch the next morning.
Cole’s daughter, Katie Wagner, told investigators she received a call from Sperb at 10:15 p.m. She has known Sperb for four years. Sperb had been at her mom’s home two weeks earlier.
The two argued on the phone. Sperb called Wagner a name. They talked for 41 seconds.
A deputy was conducting a burglary investigation at a neighbor’s home the following day when Cole’s family member found her.
Cole’s face was swollen and covered in blood. She was unconscious. She was nude from the waist up. Her pants were unzipped.
Cole was evaluated at Mercy Hospital in Janesville. A nurse found signs of sexual penetration.
Cole remained in a coma in Mercy Hospital in Janesville for weeks, officials said, and she was moved to Milwaukee for special treatment.
Sperb is scheduled to appear in court Wednesday.