Corwyn CJ Collier born in Nashville, Tennessee and moved to Cleveland, Ohio at the age of 7. He attended Maple Heights High school where he  was a three letter varsity athlete in football, wrestling and track and graduated in 2000. Upon graduation he received a track scholarship to college where he competed for 5 years. During his time in college he attended Tiffin University, Toledo University and The University of Southern Mississippi. While running track in college he earned several honors including: NAIA All-American, All Conference in both the MAC and Conference USA, and lastly 3X NCAA regional qualifier. While at Toledo University he was initiated as a member of Alpha Phi Alpha Fraternity Incorporated  in the Spring of 2003.

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Corwyn graduated college from the University of Southern Mississippi with a Bachelors of Science in Sports Administration in May 2005 and later joined the Army in 2006 and became a Military Police officer. He was deployed in 2009 to Iraq where he was hit by a roadside bomb after 5 months in his tour. For the next nine months he  was a patient at Walter Reed Hospital where he recovered to be able to come home.

Corwyn returned home from the hospital in March of 2010 and started his Master Degree in education at the University of Akron, where he  graduated from in December 2012.

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As Corwyn began to move forward in life and recover more both mentally and physically, he began competing in men's physique in 2014. After two years of competing as an amateur he became the first wounded/partial amputee vet to earn his IFBB pro card in 2016. During his experience he learned to train individuals and provide them with nutrition plans to help meet their goals.

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Corwyn has been featured in Men's Health Magazine, Bodybuilding.com, Fitness magazine. Through his ventures he has also been on a show called the Triumph Games (2016) where he competed with other wounded vets and a series of contests as well as being featured in a documentary called Alive (2019) on Hulu and Epix. Corwyn, recently won The Ultimate Men's Health Guy competition through Men's Health magazine, where he graces the cover for December 2022. 

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Corwyn has been married to his wife Iisha since 2008. They have three sons together (Malachi, Corwyn Jr. Aaron) and reside in Stow, OH. He has been teaching at Maple Heights High School since 2013 and took over as the head track coach 2019. He has also coached Shaker Feet on Fire, an AAU/USATF track team in the summer from 2013 to 2021.