The Wanda Beach Murders

Victims Christine and Marianne were both viciously stabbed several times, with what looked to be a knife. The ripple effect of the brutal murder stirred to life a ravenous manhunt that would affect thousands of potential culprits. Medical examiner found traces of semen on both of the victims, but no signs of rape. So there was a sexual component to the crime, but since the girls weren't raped, we can't assume it was purely sexual in nature.