The shooting, which left one man dead and three wounded, including Collins, took place in the green room on the third floor of Irving Plaza in Union Square. One male victim died from a gunshot to the stomach after being rushed to Mount Sinai Beth Israel Hospital.
Another male victim, who is in critical condition, was shot in the chest, while a female victim was shot in the leg. Collins was shot in the leg during a scuffle after allegedly opening fire. He is still in the hospital receiving treatment for his injury.
Police released surveillance video that captured the shooting, in part. An adult male can be seen barging into the room and opening fire as bystanders try to take cover.
At the time of the shooting, rappers Maino and Uncle Murda, who were set to open for T.I., were performing on stage.
T.I., whose real name is Clifford Joseph Harris, Jr., took to Instagram on Thursday to share his thoughts with the family of the deceased and the others wounded in the attack.
"My heart is heavy today. Our music is intended to save lives, like it has mine and many others. My heartfelt condolences to the family that suffered the loss and my prayers are with all those injured," the rapper wrote.