The First 48 S08 E07 Devil Inside; Rattlesnake

An elderly woman is brutally murdered and left under a highway underpass. When satanic symbols are found by the body, police investigate and learn about a similar case. With lots of help they set out to catch a possible serial killer. Local teenage is recklessly shot and killed, the community is gripped by fear. The investigators talk to the neighbors hoping to get one of them to speak.