Alleged truck stop serial killer Mendenhall charged in fourth homicide

Four policemen unsuccessfully scoured the truck stop parking lot in south Indianapolis that warm July day, searching underneath cars and inside dumpsters for any evidence of 31-year-old Carma Purpura. Investigators spent three days using aerial views from police helicopters and K-9 officers in the area, but turned up nothing. The evidence, prosecutors say, was headed for Tennessee in Bruce Mendenhall's mustard yellow company truck.