The superintendent of Littleton Public Schools responded to comments from a school security guard who criticized the district for failing to prevent last month's fatal shooting at Arapahoe High School.
Scott Murphy sent a letter to parents defending the conduct of school administrators. Her also asked parents to be patient while authorities investigate the shooting and avoid making judgments based on rumor and false information.
Claire Davis, 17, died after being shot by classmate Karl Pierson, 18.
Earlier this week, Cameron Rust generated a heated debate on social media by posting a letter claiming that administrators knew about past threatening behavior by Pierson but failed to act.
The past behavior included threatening a teacher's life and using a school computer to search online for guns to buy, Rust said.
Rust said his concern about Pierson led administrators to place him on paid leave and try to keep him quiet about the matter.
Arapahoe student Taylor Hamilton said she agrees with Murphy's advice and hopes parents will, too.
"We don't want to jump to conclusions too quickly because we don't want to be too quick to judge -- him, the administration or just the whole situation," she said.