A 28-year old man was injured today after he used a parachute to jump off the top of the new Target Headquarters in downtown Minneapolis. William Casey broke his leg when he landed on a rooftop near 10th street and Nicolette. Policed charged him with two Misdemeanor counts of trespassing and disorderly conduct. Casey was BASE-jumping... a sport that evolved from sky-diving during the 70's. BASE stands for Buildings, Attena, Span and Earth- the stationary objects jumpers launch from. Harry Parker is a founder of the Cliff Jumping Association of America- an organization committed to safe and legal BASE jumping. I asked him what it feels like to make a jump: