karen oswald : the blood came back to sarah goode. prints. so thats why detectives had been gathering handprints from every potential suspect. the prosecutor says they knew if they could find a match, they could likely solve this crime. andrea canning : its almost like it was the killers calling card. janet albertson : it was his signature. andrea canning : the print specialist was able to compare that bloody signature with those of potential suspects detectives sent her way. karen oswald : you dont always know homicides level of interest in somebody. youre going to compare these prints to anybody they ask. andrea canning : and one by one she checked for possible matches helping police cross names of their list, like sarahs ex- boyfriend, dj. his prints did not match. neither did brandon allens. it was his house sarah had been at that night. he says once he was cleared, detectives started treating him differently. brandon allen : they just wanted to know what we knew. andrea canning : you could feel that. brandon allen : yeah. andrea c