After finishing his Chemical Engineering Degree, Preston decided to enlist in the Marine Corp because of the war in Afghanistan. His father was in the Army and had died in the war in Kuwait. Preston and his mother lived in Houston Texas until he left for college. After enlisting in the Marine Corp and completing boot camp at Parris Island in South Carolina, he was transferred to the force recon division for further training in special forces and later to sniper training. He completed several tours in Afghanistan. After eight years in the Marines, he decided it was time for him to put his engineering education to use. He worked for a few years as an engineer and then opened up his own engineering business. Later and accident in one of the plants his company had designed resulted in the death of a young operator. Although his company was cleared of any fault, the death of a young family man, took its toll on Preston. He sold his business and decided to give up engineering and to relocate