Man who tried to breach FBI office killed after standoff

An armed man clad in body armor who tried to breach the FBI's Cincinnati office on Thursday was shot and killed by police after he fled the scene and engaged in an hourslong standoff in a rural part of the state, the Ohio State Highway Patrol said.

The confrontation came as officials warned of an increase in threats against federal agents in the days following a search of former President Donald Trump's Mar-a-Lago estate in Florida.

The man is believed to have been in Washington in the days leading up to the Jan. 6, 2021, insurrection and may have been present at the Capitol on the day of the attack, according to a law enforcement official briefed on the matter. The official could not discuss details of the investigation publicly and spoke on condition of anonymity.

The suspect was identified as Ricky Shiffer, 42, according to the law enforcement official. He was not charged with any crimes in connection with the Jan. 6 attack, the official said. Federal investigators are examining whether Shiffer may have had ties to far-right extremist groups, including the Proud Boys, the official said.

Shiffer "attempted to breach" the visitor's screening area at the FBI office at around 9:15 a.m. and fled when agents confronted him, according to federal authorities' account of the incident. After fleeing onto Interstate 71, he was spotted by a trooper and fired shots as the trooper pursued him, said Lt. Nathan Dennis, a Ohio State Highway Patrol spokesperson, at a press conference.

Shiffer left the interstate north of Cincinnati with police in pursuit, and got out of his car on a rural road. He exchanged gunfire with police and sustained injuries, although no one else was hurt, Dennis said. A separate highway patrol statement said Shiffer...