the important part:
After receiving a 911 call from Paul Pelosi, Scott said officers from the SFPD arrived at his house early Friday morning and knocked on the door. The door was opened by “someone inside,” and from the threshold officers saw suspect David DePape and Pelosi locked in a struggle over a single hammer, Scott said. The officers commanded both men to drop the hammer, at which point the suspect "took the hammer and violently attacked Pelosi.” He was hit at least one time, Scott said. Officers then tackled DePape, disarmed him, and called for backup and medical assistance.
https://www.bloomberg.com/news/articles/2022-10-29/-this-was-intentional-sfpd-chief-details-attack-on-paul-pelosi