Zac Clark reveals he 'could not stop shooting heroin' before turning his life around

The Bachelorette's Zac Clark Celebrates 10 YEARS Clean & Sober From 'Shooting Heroin, Smoking Crack, And Guzzling Booze'

Bachelorette's Zac Clark Is 11 Years Sober: 'If I Can Change So Can You'

The Bachelorette's Zac Clark Recalls "Shooting Heroin, Smoking Crack" on 10th Sobriety Anniversary