Great show but...
Spoiler ahead
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It was extremely unfortunate to see the most interesting character, with the most development and most future ahead, never reach her deserved ending. This whole series built a hard earned reward for Ruth that was cut short for no reason. There were many paths that could have been taken. For example, blaming the grandpa for the death of the nephew. He was a bad man who had personal connection to the whole case. He was old, stuck in his ways, and didn't deserve a good ending. But the writers slept on that option. Media is more and more often turning to killing off favorites for simple shock. It's overused and uninteresting and unfortunately knocked this series down. Lazy writing at the end of a series is enough to ruin it. For me this was written in the same font at Game of Thrones. They fumbled at the end.