An individual flagged down an HPD officer and told him a man had a knife and was sitting in a car that did not belong to him. The officer observed the suspect exit the vehicle and charge toward him with the knife. In fear of his, the officer discharged his weapon, missed, and attempted to fire again but the weapon malfunctioned. The suspect fled across several lanes of moving traffic and attempted to open the doors of passing vehicles. The officer discharged his tazer twice, both times with no effect, but eventually apprehended the suspect without further incident.