The headlines for March 23 2021.

Boulder shooting: 10 people killed, including police officer; suspect in custody - The Washington Post

AstraZeneca Covid vaccine trial data prompts 'concern,' federal agency says (nbcnews.com)

Eric Greitens, former Missouri governor who resigned amid multiple scandals, to run for Senate (nbcnews.com)

Sinovac says its vaccine is safe for children as young as 3 - ABC News (go.com)

Island Overrun With Rats Completely Recovers in Only 11 Years After Ecosystem Had Been Decimated (goodnewsnetwork.org)