When Billy left, he was actually heading towards a different town named Clark. Here he was going to rob the bank, and as he had the rest of his gang in the town already, he should have no trouble being protected.
As he was riding towards town, he was thinking about his plan to rob the bank, but his thoughts were interrupted by a big grizzly bear, looking at him from the middle of the road! Quickly, Billy brought his gun up and shot at the bear. He dropped about ten feet away from Billy, but seeing that the bear was dead, he continued to ride towards his destination.