prison. in the end, nobody is badly hurt. deputy meyer has only minor injuries. >> i sustained bruised ribs from the wrestling and body-slam that the suspect gave me. >> but is it really a good idea for bystanders to step in? police usually encourage witnesses to call 911 and not get physically involved. >> in that particular instance, i believe they made the right decision. a violent felon was taken off the street with the assistance of three complete strangers. i think each individual person has to make their own decision. >> it works this time, but it's a risk that must be taken carefully. all aboard bus 91, april 2012, boca raton, florida. two elderly sisters, one in a wheelchair, are about to get on when they're attacked from behind.