The long-time manager of 50 Cent, Diddy and Mariah Carey, who was found dead in his apartment with a gunshot wound to the head, is being hailed by his friends across Twitter as they try to cope with his sudden passing.

Diddy: R.I.P. Christ Lighty. He Was A Dear Friend Of Mine And I Still Can’t Believe It.

Nicki Minaj: “Another tragic & inconceivable loss for the culture. #RIPChrisLighty”

Rihanna: “Rest peacefully Chris Lighty, my prayers go out to family and loved ones! Dear God please have mercy”

Nick Cannon: “I’m devastated right now. I can’t believe my big brother Chris Lighty is gone… He was a pioneer, a mentor, and a great friend RIP. I truly believe to be absent from the body is to be present with the Lord, but I just feel like Chris’s work wasn’t finish on earth”

Ludacris: “R.I.P. Chris Lightly who always had the best energy every time I had an encounter with him. He will be missed”

Terrence J: “RIP to Chris Lighty. Dude gave me life changing advice & wisdom. A tragic loss, he will be deeply missed. Prayers to the family.”

The Game: “R.I.P. to my old friend “Chris Lighty”. Tragedy has once again struck the music industry & this time it hit”

Talib Kweli Greene: “Rest in peace Chris Lighty. Your words and your vision are constant inspiration to me. Forever.”

John Legend: “RIP Chris Lighty. Hip-hop visionary.”

Ice T: “If you are REALLY in Hip Hop you know Chris… If you’re not… You have NO idea how important and what a great person he was..I can’t hold back the tears…. Man!! No matter how big Chris got… He always treated me like the young kid I met, hustlin hard at the ‘New Music Seminar.’ Awwwwww man… Chris was my dude. I can’t believe this. We go back….”

Kim Kardashian: “Such sad news about Chris Lighty. He was an amazing partner in my fragrance LightHouse Beauty & friend. You will be missed!”

Kimora Lee Simmons H: “Devastated by the death of Chris Lighty…. we all love you so much! RIP friend….”

Brandy Norwood: “R.I.P. Chris Lighty! This is such a shock 🙁 My heart goes out to his family and friends.”

Yo Gotti: “R.I.P 2 My Manager CHRIS LIGHTY”

RIP, Heavy D

Omar Epps: “Really sad & confused right now.. RIP to my OG CHRIS LIGHTY. Chris Lighty was a pioneer in hip hop & the music biz period! He was a good man & a good friend. Prayers for his family & his children..”

DJ Khaled: R.I.P chris lighty!! Chris is hip hop, a friend & a gr8 person! When I came in the game he acknowledged me from the beginning & aspired 4 me 2 B gr8! Chris always wanted 2 help everyone! & did! Much luv 2 the family & my prayers R w/ them!

Pete Wentz: “RIP chris lighty.”

Scooter Braun: “hard to believe it is true but RIP to my friend Chris Lighty. gone too soon”