The Oct. 28 attack on Paul Pelosi, husband of House Speaker Nancy Pelosi (D-CA), sparked many questions and theories about the circumstances surrounding the violent attack. Here's what we know about the attack and some questions that still need to be answered.

On Oct. 28, a Friday morning, a dispatcher received a 911 call from Paul Pelosi, 82, who was talking in code to let her know there was an intruder in his home.

San Francisco police were sent to the home to perform a wellness check around 2:27 a.m. local time, according to police. When officers arrived, they saw a man and Paul Pelosi struggling for control over a single hammer.

Police stated that they witnessed the man wrestle the hammer from Paul Pelosi and violently attack him. Officers quickly tackled and subdued the assailant and rendered medical aid to Paul Pelosi after requesting emergency backup.

As a result, Paul Pelosi suffered a fracture to his skull and serious injuries to his right arm and hand. He was transported to the hospital following the attack and underwent surgery to repair a skull fracture but is expected to make a full recovery.