From AllHipHop.com:
Veteran producer Tony D. was killed in a tragic car accident last night (April 4) in his hometown of Hamilton, New Jersey.Police said Tony D., born Anthony Depula, lost control over his 2002 Jeep when it struck the fence of a local cemetery, causing the vehicle to flip onto its passenger side. [...]
Tony D. started his career as a D and he managed MC Serch of 3rd Bass fame.
He went out to produce for a number of acts, including Poor Righteous Teachers, The Outsidaz, Young Zee, King Sun, Pace Won, DJ Muggs and others.
Tony D.'s best known production was Poor Righteous Teachers' Hip-Hop classic single "Rock Dis Funky Joint," which was released in 1990.