CHICAGO (CBS) — A wheelchair-bound man has been charged with fatally shooting a neighbor at a gym in the luxury apartment building where they lived.

Reggie Daniel, 48, has been charged with one count of first-degree murder, a day after he turned himself in for shooting 45-year-old Darrin Joss, who was running on an elliptical machine inside a gym at 555 W. Kinzie St. around 7 p.m. Wednesday. Both Daniel and Joss lived in the building in the Fulton River District neighborhood.

Daniel was ordered held on $1 million bail Friday afternoon.

Police said Daniel shot Joss in the head and chest after the two had “a verbal altercation.”

Joss was taken to Northwestern Memorial Hospital after the shooting, and was pronounced dead.

(Source: Facebook)

(Source: Facebook)

Witnesses said Daniel was involved in a heated argument with Joss earlier in the evening.

“I heard that it was a dispute about a girlfriend,” Matt Budreau said.

“I overheard a man kind of getting mad at another man for flirting with his girlfriend,” Gina Genero said.

Alexa Regimand said she also was working out at the gym Tuesday night when she felt the ground shake. At first, she thought someone had dropped a weight, or maybe a yoga ball had exploded.

“When it happened the second time, I was like, ‘Something’s not right,’ and then everyone was getting down on the floor. So I’m just on the floor, and I look to my left, and then this guy is laying down, just covered in blood,” she said.

Police also reviewed surveillance video from the building, but have not said if the shooting was caught on video.