Nate is a human that works at George's Gas & Go. He is the boy that Maggie has a crush on.
Enraged by the idea that Nate killed Maggie, Jack teleported to the gas station Nate worked at and attacked him. As Jack strangled Nate, the Winchesters arrived and Dean shot Jack to get his attention when he refused to listen. The Winchesters recognized that Nate was innocent given his fear over the situation and shock at the news. After Jack's departure, the Winchesters and Castiel claimed to be FBI and the whole thing to be a training exercise. When Michael suddenly attacked, the three ordered Nate to flee and he complied.