>> the master bedroom in that residence had been ransacked. >> so both houses had been tossed. >> both houses. >> reporter: becky's most valuable necklace and rings, gone. and as edmunds kept examining that grisly scene in the parsons' garage, he determined how the burglar had assaulted kay, with a hammer, found underneath the car, and a baseball bat. >> so the way the weapons the appeared just describe a horrendous attack? >> yes, it appeared that this -- this hammer, you know, was used and there was so much blood, it slipped out of the attacker's hand. and, you know, the baseball bat, which we were able to determine belonged at that house, was -- was a weapon of opportunity after he lost the first weapon. >> reporter: it looked like the little league mom was beaten with her own son derek's baseball bat. >> it really touched my soul knowing how much derek loved baseball. and i'm, like, "how in the world could someone take a baseball bat and, you know, beat her?" >> reporter: an old-fashioned dragnet remained drawn around the subdivision. >> you got a crazy guy on your hands. >> yeah, yeah. i mean, he -- he beat that woman severely, and we need to find who it was and where he was and get him off the street.