Bob is driving down the street. He is not very attentive and crashes into the car in front of him, driven by Fred, a licensed blaster. Unknown to...

Bob is driving down the street. He is not very attentive and crashes into the car in front of him, driven by Fred, a licensed blaster. Unknown to Bob, the car has dynamite in the trunk and explodes. The Fred is killed instantly. Jane is a pedestrian on the sidewalk next to the explosion. She is struck by flying chunks of the exploding car and seriously injured. The blast is so severe, that windows shatter as far a five blocks away. Ted is struck by falling glass from an office building five blocks from the explosion. Bob is uninjured. He is sued by Jane, Ted, and Fred's estate. How would he defend himself agaisnt these actions? Would his defenses likely be successful in any of the cases? Why or why not? 

I need a detailed analysis about this case, and my opinion is that Bob will be fully responsible for the damage and injured people.