The six pipe bombs anonymously sent to the addresses of prominent Democrats across the United States each had matching characteristics, law enforcement officials revealed Wednesday evening.
The crude devices were contrived of PVC tubing attached to a digital clock, available for purchase on Amazon. They included sulfur as explosives and shards of glass as shrapnel.
X-ray images provide a more detailed look at the explosive devices that also include a battery as well as wiring to initiate an explosion.
Officials suspect a serial bomber likely with an intent to kill is behind the rash of homemade explosives sent in the mail this week.