Just turned it on so I didn't see it happen, but apparently Portland Andy was chased by antifa and they were threatening to kill him.

"A protester in Portland, Ore., reportedly trying to break down the door of a federal government building with a hammer, and allegedly used that same weapon on one of the federal officers who charged out to respond. The suspect, who allegedly struck the agent in the head and shoulder with the purported 16-inch device, according to Portland police, is in federal custody.

Tear gas and pepper spray were deployed to disperse the demonstrators, according to cops. The melee between the alleged perpetrator, an apparent accomplice, and military-garbed officers on Friday night at the Edith Green-Wendell Wyatt Federal Building was captured on video."

bizpacreview.com/2020/07/12/federal-agent-attacked-with-hammer-by-protester-as-showdown-still-rages-in-portland-945792

Navy To Give Update On Firefighting Efforts Aboard USS Bonhomme.