This might explain why Detective Dismukes thought Brad's reaction to being told about finding a body bothered him (Dismukes):
http://www.newsobserver.com/2011/03/16/1057820/cary-officer-brad-cooper-seemed.html#ixzz1GmzpSV5A
He rubbed his forehead with his right hand and held his head with his left hand as he told detectives Nancy Cooper, his wife of almost eight years, usually wore a red and black sports bra when she went out for runs.
He stopped talking after that and never mentioned any other clothes.
Detectives had not told him that the woman's body found near a drainage ditch in an unfinished Wake County subdivision was clad in nothing more than a sports bra pushed up under her arms.