A New Jersey State Police swat team member readies a robot to enter a home in which a man had barricaded himself on Friday, May 10, 2013, in Trenton, N.J. (AP Photo/The Trentonian, Scott Ketterer)

Photo by: Scott Ketterer

A New Jersey State Police swat team member readies a robot to enter a home in which a man had barricaded himself on Friday, May 10, 2013, in Trenton, N.J. (AP Photo/The Trentonian, Scott Ketterer)