The suspected gunman who attacked the Centers for Disease Control and Prevention's campus on Friday may have fired many hundred rounds, law enforcement said on Tuesday.

The CDC director described the dangers of misinformation, four days after a gunman shot at the headquarters in Atlanta, claiming the COVID-19 shot sickened him.

Gunfire aimed at the U.S. Centers for Disease Control and Prevention by a man authorities say was angry over COVID-19 vaccines is the latest in a string of violence and harassment directed at health care workers amid hostility lingering from the pandemic.

Some public health care workers say the shooting that killed a police officer and rattled the CDC campus shouldn’t be surprising in the face of ongoing misinformation and animosity about the safety of immunizations.

The gunman who opened fire Friday at the US Centers for Disease Control and Prevention broke into his father’s safe to get the five firearms recovered at the scene, state investigators said Tuesday, as some CDC workers seeking answers and reassurance from leadership were left dissatisfied by a short agency-wide meeting about the shooting.

The Georgia Bureau of Investigation identified the gunman as 30-year-old Patrick Joseph White, of Kennesaw, Georgia.