Crime at Freemont Street

A crime has been committed at Freemont Street. The main suspect is a man named Sean Baker. It was said that a man had been walking along the pathway when he was suddenly shot in the stomach. The suspect had brown hair, and blue eyes and wore a baggy Armani suit just like Sean Baker's. Sean was asked to tell the story right from the beginning. "Well," said Sean, "I was just hanging around the park when I saw this man walking along the pathway. Suddenly, a guy came up from behind him and shot him! I ran home as fast as I could. Detective Mehul asked him to give a description of the murderer. "He had a red mustache, red hair and a baggy Armani suit on."

"I think this man is telling a lie," said one of Detective Mehul's allies. How did he know?

How can the murderer shoot him in the stomach if he came up behind the man? How can the murderer shoot him in the stomach if he came up behind the man?