Lives of two male college students have been ruled ` ` accidental drowning '' Two retired NYC detectives believe this may be work of killer or murderer . At least 12 creepy smiley faces found where bodies were put in rivers , lakes . FBI : No evidence of tragic deaths or substantiating serial killer theory .
Deaths of 40 male college students have been ruled `` accidental drowning '' Two retired NYC detectives believe deaths may be work of killer or killers . At least 12 creepy smiley faces found where bodies were put in rivers , lakes . FBI : No evidence linking tragic deaths or substantiating serial killer theory .