Forensics specialist Joseph Scott Morgan is comparing the murders at the University of Idaho to the Gainesville Ripper from 1990 whose crimes inspired the Scream franchise.
Moscow police believe victims Kaylee Goncalvez, 21, Madison Mogen, 21, Ethan Chapin, 20, and Xana Kernodle, 20, were stabbed to death at their home near campus between 3am and 4am.
The parents of Idaho murder victim Kaylee Goncalves say her ex-boyfriend, Jack DeCoeur, is innocent after it was revealed she called him 7 times before her death.
Police on Friday released a map showing the last known movements of the four students found dead in their shared home in Moscow, Idaho. Their two roommates have not been ruled out as suspects.
The sister of one of the University of Idaho students killed in a brutal quadruple murder over the weekend urged any students still at the school to evacuate.