 CONT: When Jack is chasing Hewitt on the rooftop, Hewitt climbs onto  a raised level of the roof, then pulls up the ladder to try to keep  Jack from catching him. We see Hewitt drop the ladder at the top of  the wall, with a portion of the ladder extending over the edge. Jack  then climbs a pipe which is attached to the wall, just to the right  of where the ladder was placed. When Jack reaches the top, the  ladder is gone.