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What We Know About The Suspect Who Planted Bombs Before The Capitol Riot

More than three months after the U.S. Capitol riot, a bomb-maker remains on the loose.

A majority of the public's attention has been focused on the hundreds of people who have been charged for their role on Jan. 6. But the night before, someone committed a different crime: The person placed two explosive devices near the Capitol in Washington, D.C., and that person is still at large.

The FBI released a substantial amount of information in an attempt to drum up leads from the public, and the reward for information about the suspect is now $100,000.

Here's what is known: The suspect was wearing a gray hooded sweatshirt, a COVID-19 mask and expensive sneakers — Nike Air Max Speed Turf with a distinctive yellow logo. Sometime between 7:30 and 8:30 p.m., the suspect placed one pipe bomb on a park bench near the headquarters of the Democratic National Committee and another behind the Republican National Committee headquarters.

Doug Kouns spent 22 years in the FBI and focused on counterterrorism after the Sept. 11 attacks, and he said that the suspect made a concerted effort to hide their identity. "You can see the person's wearing gloves. They seem to be familiar with the area. They probably know there's cameras here and there and have really just covered their tracks," Kouns said.

The explosive devices were made from galvanized steel pipes and had plastic kitchen timers mounted on top.
The explosive devices were made from galvanized steel pipes and had plastic kitchen timers mounted on top.

The explosive devices the suspect made were rather generic: simple bombs made from 1-by-8-inch galvanized steel pipes — the kind plumbers use — with plastic kitchen timers mounted on top, the ones you spin around to set. The FBI said the explosive inside was homemade black powder, which can be a mix of just about anything that will ignite; typically it includes saltpeter, sulfur and gunpowder.

"What I think would be accurate to say, given the information we have, is this is a very hazardous device that could kill people," said Barry Black, a retired FBI special agent and master bomb technician who helped investigate the 1995 Oklahoma City bombing.

The FBI is also using gait analysis, a technique used to identify someone by the way the person walks, hoping it will lead to a suspect. Agents have released surveillance video to see if someone in the public might recognize the suspect from the way he or she moves.

Dr. Mike Nirenberg wrote a textbook on gait analysis, and he reviewed the FBI video with NPR. "Look at how close their feet are to each other. ... So that is a narrow base of gait," he said, watching the suspect. "Immediately what you notice is the arm swing of the person on that left arm. ... There isn't a lot of rotation in the upper half of their body, their torso."

The FBI is asking people with possible leads to contact it if they know of anyone who acted suspiciously in the time leading up to Jan. 5, purchased multiple kitchen timers without a good explanation or showed an unusual interest in explosives.

While the suspect's motive is unknown, former U.S. Capitol Police Chief Steven Sund testified before Congress that he believes that the devices were planted as a possible diversion ahead of the events the following day. "We were dealing with two pipe bombs that were specifically set right off the edge of our perimeter to, what I suspect, draw resources away," he said in a congressional hearing. "I think there was a significant coordination with this attack."

Despite all the resources that federal law enforcement has at its disposal, it has not yet been able to make an arrest in this case. "I would say it just takes time," Black told NPR. "You know we've had investigations, bombing investigations ... where it would be 10, 15, 20 years before someone was indicted."

Copyright 2021 NPR. To see more, visit https://www.npr.org.

Dina Temple-Raston is a correspondent on NPR's Investigations team focusing on breaking news stories and national security, technology and social justice.
Tim Mak is NPR's Washington Investigative Correspondent, focused on political enterprise journalism.