Hoping to generate new tips from the public, the FBI is releasing more information about its pipe bomb investigation, including an estimate that the unidentified suspect is about 5 feet 7 inches tall.
A North Bay man who served prison time for having pipe bombs has been arrested and charged again for allegedly possessing materials to make explosive devices, authorities said.
ABC 20/20 Explosive Secrets investigated the murder of Gary Lee Triano, a millionaire real estate developer, who died after a pipe exploded in his car.