It's around 1:30 a.m. on Sept. 7, 1973.

A man making his way across the parking lot of Seven Hills Plaza on Myrtle Street notices something at the bottom of an embankment on Salem Street.

The man takes a closer look and finds the body of 49-year-old Roland Clarkson, face up at the bottom of the embankment.

Roland's skull had been crushed.

When police arrive, they find a large chunk of concrete near Roland's body. He had been mutilated.