Student, Palm Beach Community College, 1987—1988. Bachelor, Western Kentucky University, Bowling Green, 1993.
Loomis started his first newspaper job as a part-time photography lab technician at the Palm Beach Post in Florida where he was raised. Loomis earned a Bachelor of Arts in Photojournalism with a minor in Latin American Studies from Western Kentucky University. He joined the staff of the Los Angeles Times in 1994.
Loomis spent a month covering the aftermath of the September 11 attacks before joining the United States Marine Corps as they invaded Afghanistan.
He covered the war in Afghanistan extensively for the following decade, spending more than two years in the country since 2001. During that time he also worked as an embedded journalist with the United States Army and Special Forces.
In 2003, Loomis again embedded with the United States Marine Corps to document the invasion of Iraq. In 2004, he covered the First Battle of Fallujah, also known as Operation Vigilant Resolve and has made several subsequent trips to report on the ongoing situation in Fallujah.
He has been a photography instructor at the Eddie Adams Workshop and the Mountain Workshops in Kentucky.
Member of National Press Photographers Association (Photographer of Year 2003), California Press Photographers Association (Photographer of Year 2002, 2004).