come up with a powerful explosive device. >> reporter: that's for sure. i'm talking to bomb experts. they are steering clear of the word amateurish. if it could have worked and killed people then let's not necessarily use the word amateurish. it has gas cans, propane cylinders. the kind you would use in a propane barbecue and alarm clocks. they showed pictures of the common alarm clocks that are a triggering device. there was a huge metal gun locker in the back of the suv pathfinder. inside that were eight bags and believed to contain fertilizer. the question is, how did the person who put it all together expect to ignite these things?