reese lost her mom when she was just a year old in a boating accident. after her mother's family just dropped reese and her dad, edwin to their own devices. this drove edwin into hunting. so for a while, reese was a hunter's kid for a bit.
when reese was 9 years old, she met sam and dean winchesters, because their dads had a case together but after events of that case, led to john and edwin to dispute with one another, causing a fall out and reese hadn't seen the winchesters since. and her father hasn't hunted since that day.
after those events, reese went on to live a normal life; her dad remarried the neighbor upstairs, beatrice and they had a kid together named adrianna. reese grew up and ended up at columbia university on a full ride.
but all of the changes when a certain person from her past shows up at her dormitory steps.