undergoing unfathomable injury and harm. >> the investigation into the cause still very active. thank you very much. and joining us at the top of the hour for a news conference on that church fire. we're going to carry it live. in other news today a practice run just inches from freedom and hours before their big escape. david sweat tells investigators he and richard matt rehearsed their dash through the prison tunnels and pipes and popped up a manhole through the prison walls. nearby homes forced them to backtrack and choose a more isolated manhole for their real run the next night. as sweat talks damning allegations build up against the prison and how it was run. three top executives are put on leave along with nine staffers. to talk more about this let's bring in jean casarez.