“My firstborn child died in my arms,” Musk wrote in another post. “I felt his last heartbeat. I have no mercy for anyone who would use the deaths of children for gain, politics or fame.”

But after a waiting period…

His ex said he was lying about that, too:

“He was declared brain-dead,” Justine Musk wrote. “And not that it matters to anyone except me, because it is one of the most sacred and defining moments of my life, but I was the one who was holding him.”