Actresses Demi Moore and Nia Vardalos were linked to an online chain of Twitter posts that ultimately led to Florida authorities intervening Friday when an 18-year-old man threatened to commit suicide. Moore's Twitter account, mrskutcher, was among those responding to a message from a young man threatening to hang himself in his front yard in Casselberry, north of Orlando. Vardalos' eponymous account included a message that she had called a suicide hotline and been connected to Florida police. “I gave his name+city. They went to home, helped him,” one message read. The Seminole County Sheriff's Office said authorities received two calls around 2:30 A.M., one from California and one from Vancouver, British Columbia. Both callers reported the suicide threat on Twitter. There was no record of the callers' names, Lt. Sonia Pisano said. Deputies went to a home and took the man to a hospital, Pisano said. The teen's mother told the deputy responding that her son “was very emotional and diagnosed with obsessive compulsive disorder”.