Question: what are smiley face murders?
Answer: Smiley Face Killer. Smiley face killer may refer to: ... Robert Lee Yates (born 1952), serial killer who used plastic bags with a smiley face printed on them to cover the heads of his victims. Smiley face murder theory, a theory about smiley faces near the bodies of young men killed by drowning between 1992 and 2008.