. >> marlene warren really liked clowns. >> here is a set of three clowns. marlene painted it when she was a teenager. >> there aren't just random evil clowns walking around unless it's in the movies. >> the clown costume is a perfect costume to commit a crime in. >> it's literally walking camouflage. >> a woman was shot at her front door. by a person dressed in a clown costume. and my heart dropped. >> they're smiling and performing now in a split-second, they could wipe off that paint of a smile and be a killer. >>> wellington, florida, is just a very monied, sleepy part of south florida. it's right up against the everglades. >> wellington is one of the richest cities in palm beach county. >> you've got palm beach, which is the tony island of millionaires and billionaires. >> deborah: it's also home to mar-a-lago, president trump's so-called winter white house. >> and then you have wellington. you've got the wellington of the equestrian set where bruce springsteen has a house. >> quiet, but lavish. >> the houses were built around a grass airstrip, and they