Robert Yancy, son of the late R&B singer Natalie Cole, died suddenly at age 39 from coronary artery disease, the final autopsy report obtained by the Daily News confirmed.

How did Robbie Yancy die?

Yancy's aunt, Timolin Cole Augustus, told The Associated Press, his death "appears to be a sudden heart attack." Yancy was a drummer who played in his mother's touring band and performed at her funeral in January 2016.

What killed Natalie Cole's son?

He was 39. TMZ reports Yancy was found by a friend in his San Fernando Valley, California, apartment. According to the outlet, Yancy died of natural causes, pending the completion of an autopsy and toxicology tests.