Elon Musk’s first son, Nevada, whom he shared with ex-wife Justine Wilson, died at 10 weeks old in 2002 from sudden infant death syndrome. Musk once shared that he felt his son’s last heartbeat in his arms, stating he has “no mercy” for those who exploit child deaths for gain.

Recently, Musk’s father, Errol Musk, blamed his son for Nevada’s passing, claiming he was raised by nannies. In a podcast, he criticized Musk and Wilson’s parenting, calling their setup “really weird.”

Wilson later detailed the tragedy, revealing Nevada was brain-dead after a nap and spent three days on life support before they removed it.

Musk, now a father of 12, is rumored to have a 13th child after author Ashley St. Clair claimed she secretly gave birth to his baby.