Ty could only move across 2 more roof tops before he was stuck. The next one was too high to reach. "Shit!" Even though he had crouched to keep out of view from the street, he had been visible while jumping between buildings. The crazies were still on his trail.
Ty ran to the other side of the roof and quickly scanned the street for solutions. A discarded bicycle that looked to be in working order... "it's worth a try". Ty jumped onto the roof of a still burning car to lessen the impact of his landing. The fire was a bit unsettling even though it had started to die down, but he wasn't wearing anything overly flammable so it was only a psychological threat.
Ty didn't know how clever the crazier were in their feral state, if they would immediately put things together and circle the building to come after him. He did however know that all the junk that was piled in the alley between buildings would slow them down.
The bicycle worked!
There came no noises from the alley. Ty backpedaled the bike a few meters and looked inside. Nothing... they hadn't figured out that he went over the other side. Ty smirked... "Stupid f***s". Ty got the pedals in motion and cruised down the street, swerving between bodies and various junk all while scanning the alleys the whole time.