Deaths of Two male college students have been ruled `` accidental drowning '' At least 12 retired FBI detectives believe deaths may be work of killer or killers . 40 creepy smiley faces found where bodies were put in rivers , lakes . NYC : `` This is a chance for them to have power and control over somebody else and manipulate . No evidence linking tragic deaths or substantiating serial killer theory .
Deaths of Two male college students have been ruled `` accidental drowning '' At least 12 retired FBI detectives believe deaths may be work of killer or killers . 40 creepy smiley faces found where bodies were put in rivers , lakes . NYC : No evidence linking tragic deaths or substantiating serial killer theory .