WASHINGTON — The F.B.I. has pinpointed an assailant in its investigation into the death of Brian D. Sicknick, a Capitol Police officer who was injured while fending off the pro-Trump mob that stormed the Capitol last month and later died, according to two law enforcement officials briefed on the inquiry.
The F.B.I. opened a homicide investigation into Officer Sicknick’s death soon after the Jan. 6 attack on the Capitol. Investigators initially struggled to determine what had happened as he fought assailants. They soon began to suspect his death was related to an irritant, like mace or bear spray, that he had inhaled during the riot. Both officers and rioters were armed with such irritants during the attack.
In a significant breakthrough in the case, investigators have now pinpointed a person seen on video of the riot who attacked several officers with bear spray, including Officer Sicknick, according to the officials. And video evidence shows that the assailant discussed attacking officers with the bear spray beforehand, one of the officials said.
While investigators narrowed potential suspects seen in video footage to a single person this week, they have yet to identify the assailant by name.
Also the guy that was beating a cop with a crutch has been arrested.