MF Doom is known for wearing a mask – both literally and metaphorically. The rapper is known to keep a low profile, rarely revealing any details about his personal life.

Today, the New York native took to Facebook to announce the tragic passing of his 14-year-old son Malachi Ezekiel Dumile, writing:

“KING MALACHI EZEKIEL DUMILE 2/22/03 – 12/18/17 THE GREATEST SON ONE COULD ASK FOR. SAFE JOURNEY AND MAY ALL OUR ANCESTORS GREET YOU WITH OPEN ARMS. ONE OF OUR GREATEST INSPIRATIONS. THANK YOU FOR ALLOWING US TO BE YOUR PARENTS. LOVE YOU MALI.”

The cause of death is yet to be determined.