POI keeps on delivering weeks after weeks from every angle. This one touched on the question "is every number the machine gives deserve to be saved/protected?. Since it is a machine, it may not understand some humans "codes". Morality , redemption, etc. This week's POI Riley was a mob enforcer who was tasked by his boss to kill a lady who is also a widow of the former employee of the mob that the head had Riley kill "months" before. The twist was the Riley and widow had fallen in love in "months" after he killed her husband, and the widow didnt know. Incidentally, the mob boss knows about the romance and wanted his son to kill Riley.Riley instead, killed the son, and had to escape the city with the widow (Annie) thus both becomes in danger and on the run from the mob.
Now the fun part, the machine gave out the number of Riley, a killer, to use Root's word, Bad code, Finch say at the beginning that Reese should protect Annie since Riley is a killer, a bad code (flawed in design). Reese reminded Finch that there isnt much difference between Reese and Riley, they are both killers.You can argue that the machine gave out Riley's number coz Riley was protecting an innocent and he needed the protection, but i would like to believe the machine gave out Riley's number because he was WORTH SAVING. He may be a killer but he was a killer that had found a reason to be better, a reason to change and do good. As Reese said in the pilot episode "When you find that one person who connects you to the world, you become someone different, someone better. When that person is taken from you, what do you become then?". For Reese that person was Jessica and tha why he understood Riley, because Annie the widow was Riley's Jessica. Riley knew Annie had to be saved and get out of the city but he was a better person enough to understand, if he runs with her, Annie will always be in danger. He was willing to let her go. Just like Reese was for Jessica. Annie was saved, Riley died and Reese in the end made "someone" accountable for Riley's murder. Reese drawing parallels to himself knew Riley was WORTH to get justice for.
As Finch stated in the end, Bad code only apply to machines!we are humans "we have the ability to change, to evolve" to be someone better.