I agree it made no sense that the cop suddenly decided to help Kimble
It should probably have been a 1and a half hour special rather than 2 hours but I felt it was a very successful final episode the explanation of what happened was actually far more believable than I was expecting I knew there was no way they would let him have vigilante justice so it was disappointing although not unexpected
But what a result for Kimble. Not only was he cleared but he ended up with a much hotter wife than he started off with and to dance on his dead wife's grave no doubt will end up having kids with her,those are the breaks.