Former firefighter accused of planting explosives near California roadways pleads not guilty

Authorities say a former firefighter with a previous arson conviction has been arrested on suspicion of detonating a homemade bomb and planting several other explosive devices along roadways across two Northern California counties

​ABC News: US Authorities say a former firefighter with a previous arson conviction has been arrested on suspicion of detonating a homemade bomb and planting several other explosive devices along roadways across two Northern California counties