Since it's a Sean Falcone novel, he's presumably the central figure. He could be a tough, resourceful individual. He might be a private investigator, a military man, or someone with a special set of skills. He could be on a quest for justice or revenge in the context of 'Final Strike'.
Yes, there are. Some classic American diners have a similar feel. For example, Mel's Drive - In. It has the retro look with shiny exteriors and a menu full of diner favorites. The booths and the overall atmosphere can remind you of the Jimmy Rockets - like place in Pulp Fiction.
Jimmy Hoffa was a powerful labor union leader. He was involved in various activities within the Teamsters Union. However, his story took a dark turn. He had connections with organized crime, which led to many controversies. Eventually, he mysteriously disappeared in 1975, and his disappearance remains an unsolved mystery to this day.
I'm pretty sure it's not real. There's no concrete evidence or reliable source to confirm its authenticity. It could just be a story someone came up with for entertainment.
The real story of Jimmy Keene involves his extraordinary experience of going undercover. He was given a chance to reduce his prison sentence by getting close to a suspected serial killer in prison. Jimmy had to use his wits and charm to gain the trust of this dangerous individual. It was a risky and complex situation as he was in a dangerous environment surrounded by criminals, but his actions were crucial for the investigation.
Perhaps 'Jimmy Bones' is a fictional name created for a story. In some cases, it could be part of a horror or mystery story. He might have been a character who was wronged in the past and his spirit haunts a certain location. But again, without more information, it's all speculation.