"Three Colombian teenagers were murdered in five days after their names appeared on two hitlists published on Facebook"
Two days later, young people in the town received via Facebook a hitlist with 69 names on it, including those of the two killed. The teenagers on the list were advised to leave town or face death.
Norbey Alexander Vargas, 19, was shot dead three days after his name appeared on the list.
Police thought the first list was a macabre joke or a game between adolescents, officials said, but when the second list with 31 additional names appeared days later, parents began to panic and authorities launched an investigation.