Amy Schumer has taken to Twitter to express her condolences to the families of the victims of last night's shooting in Lafayette, Louisiana. A gunman shot two people dead before turning the gun on himself during a movie theater screening of Schumer's film, Trainwreck. Several attendees were also wounded in the shooting. "My heart is broken and all my thoughts and prayers are with everyone in Louisiana," the comedian tweeted Thursday night. Others involved with the film, including co-star Bill Hader and director Judd Apatow, have yet to make public statements about the tragedy. Bob Gazzale, president and CEO of the American Film Institute, issued a statement on behalf of the AFI. "Going to a summer movie is a celebration of the American creative spirit and one of our nation's most beloved pastimes," he said. "Let us stand together in these times of tragedy and embrace what is precious to us — churches, schools, and places where the arts can send our spirits soaring. As a national community of artists and audiences, AFI offers our heartfelt sympathies to the victims in Louisiana and their families." Lafayette Police have identified the shooter as 59-year-old John Russel Houser, CNN reports. His motives remain unclear at this time.