The house where a missing woman was allegedly kept locked in a cage has mysteriously gone up in flames after authorities discovered it had been booby-trapped.
The Missouri home belonged to James Phelp, 58, who is accused of kidnapping, inflicting injury and terrorising Cassidy Rainwater.
A bomb squad was called after fire crews battling the blaze discovered a tripwire and a live explosive device, which was able to be detonated.