Robert Downey Jr. was joined by several of his Marvel pals in paying tribute to Jimmy Rich, Rdj's personal assistant who died unexpectedly in a tragic accident. On Wednesday evening, Rich was in a fatal car accident, though additional details are currently unknown. In a post on Instagram, Rdj included an image of Rich along with a message of tribute for his late friend, and it's clear that the actor is in tremendous pain over the surprising loss.

"This is not news. This is a terrible and shocking tragedy," Robert Downey Jr. writes. "Jimmy Rich was in a fatal car accident at approx. 8pm yesterday. He was a brother, my right hand man, an uncle to our kids and beloved by all who experienced his singular character and wit.. our thoughts go to his relatives, friends, co-workers, and all the fans who knew him as the man who supported every step of my recovery,...