Jason Lewis was born on June 30, 1977, in Danbury, Connecticut. He enlisted in the U.S. Navy on February 29, 1996, and went on active duty to begin basic training on July 22, 1996. Lewis completed basic training at NTC Great Lakes, Illinois, in November 1996, and then served temporarily at Personnel Support Detachment Bethesda, Maryland, from November 1996 to January 1997. He attended Basic Underwater Demolition/SEAL training at NAB Coronado, California, from January to August 1997, followed by Basic Airborne training at Fort Benning, Georgia, in August and September 1997. His first assignment was with SEAL Team FIVE at NAB Coronado from October 1997 to March 2004, followed by service at the Naval Special Warfare Center at Coronado from March 2004 to January 2006. His final assignment was with Naval Special Warfare Group TWO at NAB Little Creek, Virginia, from January 2006 until he was killed in action in Iraq on July 6, 2007. Jason Lewis was buried at the Center Cemetery in New Milford, Connecticut.

His Bronze Star Medal w/Valor Citation reads:

For heroic achievement in connection with combat operations against the enemy as Assault Team Leader for a highly sensitive Joint Task Force operation in direct support of Operation IRAQI FREEDOM on 6 July 2007. Petty Officer Lewis displayed heroic bravery in the face of the enemy. His team completed a direct action operation targeting high value individuals with follow-on tasking to recover an unattended sensor. After completing actions on the objective and as the convoy evacuated from the objective area, the task unit was ambushed while entering a channelized area. The convoy was then struck by an explosive device that pierced the high mobility multi-wheeled vehicle (HMMWV) cabin, sheared the .50 caliber machine gun barrel, and penetrated the troop compartment area where Petty Officer Lewis was located. Bravely exposing himself to enemy fire, Petty Officer Lewis was mortally wounded in a heroic attempt to provide additional security to his team. By his extraordinary guidance, zealous initiative, and total dedication to duty, Petty Officer Lewis reflected great credit upon himself and upheld the highest traditions of the United States Naval Service.

The Combat Distinguishing Device is authorized.