Schumer and Gillibrand Tour Shooting Site

Police say they have no reason to doubt the authenticity of a letter sent to an upstate TV station, forecasting last week's mass shooting in Binghampton. Police chief Joe Zikusky says the letter that apparently was written by the shooter, Jiverly Wong, has been handed over to behavioral analysts at the FBI.

ZIKUSKY: There's obviously some mental health issues there, there were some religious overtones. They're the experts, and the people they contract with are the experts, to tell us exactly what that means.

Senators Charles Schumer and Kirsten Gillibrand say they toured the scene of the shooting, at an immigrant services center. Gillibrand called the crime "gruesome." Both said they wanted to wait until more evidence was in before saying whether New York's gun laws need to be strengthened. Gillibrand, an ardent supporter of gun rights, says she doesn't support gun violence.