Inside, the flat was rigged with a tripwire connecting the front door to chemicals that, when mixed, would spark a fire, he testified.

BBC: Batman suspect James Holmes 'set booby-traps' in flat

It was empty at the time of the blast, but a spark ignited a buildup of natural gas vapors, causing an explosion that caused a second barge to catch fire, CNN affiliate WALA TV reported, citing Coast Guard Lt.

CNN: SHARE THIS

Sturrock supposedly fell victim to a whispering campaign that began as a spark, and built in force and power until it became a blazing forest fire.

BBC: SPORT | Football | My Club | Southampton | Rupert the Rare