Crime Desk: Arson (3/3)

With fire trucks still on site, Nicholson surveys the damage first hand.

Howard Hughes addresses the press about his revolutionary new aircraft, the "Hercules H-4".

Phelps grills Fred Nicholson for all he knows at the site of the explosion.

Phelps and Biggs have an unexpected meeting with retired LAPD officer Vernon Mapes.

Phelps surveys the devastation from the Nicholson explosion.