The up-and-coming artist was shot multiple times while in his Porsche.
Khloe and Rob Kardashian paid tribute to French Montana's collaborator Chinx after the rapper was fatally shot in New York early Sunday morning.
The 31-year-old rapper, whose legal name is Lionel Pickens, had performed in Brooklyn around 2:30 a.m. and after his show headed to a hookah bar, which was closed, in his Porsche Panamera 4. NYPD tell ET that Chinx was shot multiple times while the passenger in the vehicle, reportedly 27-year-old Antar Alziadi, was shot twice in the back.
The shooter than sped off while the rapper's vehicle rolled about a block and ended up in front of a Dunkin' Donuts. Police say at least seven bullet holes pierced the front and rear driver-side windows.
The men were rushed to Jamaica Hospital Medical Center where Chinx was pronounced dead. His passenger is currently in critical but stable condition.
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Chinx released his first solo album, Hurry Up & Die Vol 1: Get Ya Casket On, in 2009 and has collaborated with Khloe's on-again, off-again rapper boyfriend, French Montana.
"We've only known each other a short time but it was the best time, full of memories that I will cherish forever!" the Keeping Up with the Kardashians star Instagrammed on Sunday. "I miss you Chinxy. #TheWolfPack #RIPChinx."
Khloe's brother Rob also paid his respects to Chinx via Twitter. "Rest in peace Chinx," he wrote. "Gone way too soon."
NYPD tell ET the investigation into the shooting is ongoing.