A senior police officer who was on the scene of last week's deadly attack on the US Capitol has died, with officials telling media the veteran cop died by suicide.
Howard Liebengood, 51, who died over the weekend, was the son of former US Senate Sergeant-at-Arms and exemplified "selfless service" according to a statement released by the US Capitol Police union.
"We are reeling from the death of Officer Liebengood," Capitol Police union boss Gus Papathanasiou said in a statement.
"Every Capitol Police Officer put the security of others before their own safety and Officer Liebengood was an example of the selfless service that is the hallmark of USCP. This is a tragic day."
"Our thoughts and prayers go out to his family, friends, and colleagues," the Capitol Police said in a statement.
"We ask that his family and other USCP officers' and their families' privacy be respected during this profoundly difficult time."
Neither statement referred to suicide, but two law enforcement officials told The Washington Post that Liebengood took his own life.
Liebengood is the second US Capitol Police officer to die after the violent storming of the Capitol building.
Brian D Sicknick was injured "while physically engaging with protesters" and succumbed to his injuries days later, one of five people to die following the day's tragic events.
One, Ashli Babbitt, was shot by police and three other rioters died after medical events.
During the struggle at the Capitol, Sicknick, 42, was hit in the head with a fire extinguisher, two law enforcement officials told the Associated Press on condition of anonymity.
The rampage that has shocked the world and left the country on edge forced the resignations of three top Capitol security officials over the failure to stop the breach.
It has led lawmakers to demand a review of operations and an FBI briefing over what they called a "terrorist attack."
Capitol Police chief Steven Sund stepped down after mounting pressure from lawmakers, issuing a statement saying police were "actively attacked" with metal pipes and other weapons.
"They were determined to enter into the Capitol building by causing great damage," Sund said, revealing that officers shot Ashli Babbitt as "protesters were forcing their way toward the House chamber where members of Congress were sheltering in place".
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- Additional reporting, AP