What are the stories Shawn had told Will about their dad in Chapter Five? What does Will remember about these stories?

Shawn had told Will stories of their dad dressing up as Michael Jackson for Halloween, taking them trick-or-treating, and then giving them rides up and down the elevator while doing the moonwalk. Shawn had also told Will their their dad had been killed by someone who had come up behind him and asked if he knew Ghee, and then shot him. Will does not remember the first story, and does not remember when his dad had died, as he had been three.