Chet P. Hewitt, President and CEO – Sierra Health Foundation, Founder and CEO – The Center at Sierra Health Foundation By: Megan Thomas & Chet P. Hewitt, Sierra Health Foundation Statewide — California communities are once again grappling with the deadly consequences of hate. In May, a shooting at the Islamic Center of San Diego claimed three lives in a place meant for worship, learning and community. While this tragedy has deeply impacted our communities, it is not an isolated incident.