
July 28, 2009

$5K Reward Offered In Double Slaying Near OSU Campus
Investigators say there's reason to believe someone has information about the 1970 slaying of a couple. Find out why.

''Sproat, 23, an Ohio State graduate student, and Petry, 20, were both stabbed multiple times and bound with metal coat hangers, police said.
A bowling ball was also used to smash the skull of one of the victims, Hogan reported.The couple's bodies were discovered by Sproat's roommate.
During the course of the investigation, police were able to recover physical and DNA evidence from the crime scene.''

Photos | Cold case: 1970 slayings of Mary Petry, William Sproat
Photos | Cold case: 1970 slayings of Mary Petry, William Sproat

![These five coat hangers and a 12-inch knife were used in the slayings of Mary Petry and William Sproat. Columbus police displayed them to the media on March 3, 1970, two days after the couple’s bodies were found. [Dispatch file photo] These five coat hangers and a 12-inch knife were used in the slayings of Mary Petry and William Sproat. Columbus police displayed them to the media on March 3, 1970, two days after the couple’s bodies were found. [Dispatch file photo]](/proxy.php?image=https%3A%2F%2Fwww.gannett-cdn.com%2Fauthoring%2F2020%2F03%2F03%2FNCOD%2Fghows_image-OH-0b5e9589-1340-43e2-a579-12273d44fab4.jpeg%3Fwidth%3D592%26format%3Dpjpg%26auto%3Dwebp%26quality%3D70&hash=12fc036de1a08934c4b424027255fae2)
These five coat hangers and a 12-inch knife were used in the slayings of Mary Petry and William Sproat. Columbus police displayed them to the media on March 3, 1970, two days after the couple’s bodies were found. [Dispatch file photo]
THE COLUMBUS DISPATCH

The building at 178 West 8th Avenue appears to still house rental apartments, as seen in this Google StreetView photo from July 2019.
THE COLUMBUS DISPATCH

Columbus police released this wanted poster in the slayings of Mary Petry and William Sproat.
THE COLUMBUS DISPATCH