He's currently on his nth diner. It's night and raining and he's working on at least his second round of pie. By some stroke of luck, Nelson and Dylan walk into the very same diner. What if he'd skipped the diner route entirely and picked up a pie at the grocery store? Nobody doesn't like Sara Lee. Rebecca calls just as Doc realizes his quarry is right there and he tries to tell her what's going on without being obvious. He's super obvious, but it's pretty endearing. Rebecca gets his meaning and tells him she's on her way.
Visiting day, 1960. Mr. Nelson gets a look at his son's disfigured face and says, "I'm glad to see they're treating you like you deserve." He tells his son that his mother has died and left him a dried chrysanthemum. He accuses his son of killing his little brother one weekend while they were alone and blaming it on scarlet fever. "But that's not what happened, is it? You hated your brother because he was different than you. He loved life. Swimming in lakes, miniature golf, cherry pie." The whole time, Kit is sitting there, looking dead in the eyes and quite chillingly creepy. Papa Nelson goes on: "But your plan backfired, didn't it? Your mama ignored you even more." He wants a confession out of his son, but he sticks to the scarlet fever story.
Diner. As Nelson and Dylan get up to leave, Doc tries to stall them. He drops his plate on the floor, he tries to make some small talk, but eventually Nelson and Dylan make their way out the front door. Doc chases after them. He gives up all pretenses and says, "Let him go." Dylan looks up at him with big, hopeful eyes. The kid's a good actor. "Dylan, don't give up," Doc says. Rebecca drives up and comes at Nelson with a gun, but he grabs Dylan and jabs a pistol into his neck. Rebecca backs off and Nelson drives off with Dylan. "I just got that kid killed, didn't I?" Doc asks. Rebecca glares at him, but she seems angrier at the situation than at Doc himself.
Alcatraz, present day. Doc grabs the box of Kit Nelson's belongings and heads to his old cell. Rebecca scampers after him. Doc digs into the box and comes up with a bunch of pricey Ottoman cigarettes. "Only Al Capone or Machine Gun Kelly could afford these," Doc says. "So how does a guy like Nelson get the money to buy them?" Rebecca asks. This leads them to a bunch of old records where Doc finds a check to Nelson from a cement company, which leads them to finding out he worked there, which leads them to finding out they used to build bomb shelters. Doc taps at the computer for a bit and pulls up the locations for bomb shelters in all the cities where Nelson committed his crimes, including one in Walnut Creek.