RIP. Avengers cast members are mourning the death of a beloved assistant.
Robert Downey Jr. shared via Instagram that Jimmy Rich, 52, was in a fatal car accident at 8 p.m. on Wednesday, May 5.
"This is not news. This is a terrible and shocking tragedy," the 56-year-old captioned the post.
The Iron Man actor continued, "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, life and career.
"Again, my condolences to his beautiful family, and the legacy of hope and redemption his life will continue to represent. Peace Be Unto You," he concluded.
Downey and Rich met in 2003 on the set of The Singing Detective, and since then Rich worked as Downey's assistant on 22 feature-length projects, including all of the Marvel films Downey played Iron Man in, Variety reported.
Downey's MCU costars took to the comments to offer their condolences.
"Such a tragedy. Such a good man," Mark Ruffalo wrote. "I have known him almost as long as I have known you, Robert. Breaks my heart to have Jimmy go over to the other world. You will be missed Jimmy. Thanks for always being real, always being there to lend a hand and showing the way of light forward to so many people. Another sad day."
"Oh no! 😢 I’m so sorry man. Im praying [for] his family, you and yours. That sucks so bad. I’m so sorry to hear that. He was awesome. Such a tragedy," Chris Pratt said.
Captain America star Chris Evans also posted a tribute for Rich.
"I don’t have the words. Jimmy Rich was unlike anyone else. He left an indelible impression on everyone he met. No one more so than my brother @robertdowneyjr They were inseparable," Evans captioned a photo of the pair.
He continued, "I’m sending all my love to Jimmy’s friends and family. Be sure to hug your loved ones tightly and please take the time today to show Downey how many people love him and are here for him during this incredibly dark time."
Marvel Studios also honored the late staffer. "Rest In Peace, Jimmy. You have been such a great friend to all of us at Marvel Studios for so many years. Your love and light were an inspiration to everyone that knew you. We will miss you," they posted.