His brother tells ABC11 Eyewitness News that Ellison and a friend met up with the father of a girl Ellison knew when gunfire broke out.
Ellison died at WakeMed, while the other victim, Kalife I. Johnson, was treated and released.
Earlier this week, police arrested 17-year-old Mariah Wisdom and charged her with attempted murder. Authorities are still searching for her dad Rajal Wisdom and her brother, Rajal Wisdom, Jr.
Meanwhile, Ellison's family is grieving.
"It came to as a shock to me and my family," brother Thomas Whyte said. "Can't cope I can't cope, my mom can't cope."
Whyte is Ellison's older brother.
"I took it kind of hard, because I've been in that battle with him before and felt like I should have been there," he said.
Whyte and his family set up a memorial to remember Ellison at the place where he lost his life off Skycrest Drive and Southall Road in north Raleigh.
"I'm still hurt, still very anger," Whyte said. "I'm just trying to hold it together for the family."
Dozens of Ellison's friends and classmates have come to the memorial to show their support - some say they still can't believe it.
"He was a real loved guy nobody would expect that out of all people it would be Nigel," friend and classmate Tyler Hooley said.
Whyte says his brother was in the wrong place at the wrong time. Now he just wants answers.
"I really want these guys to be caught and let the court system have their way," Whyte said.
Ellison's funeral is Saturday at 1 p.m. at the Hayward Funeral Home in Raleigh.
While, Rajal Wisdom and his son are still on the loose, they also face first-degree murder and attempted murder charges.
Anyone with information on the whereabouts of the Wisdoms is asked to call the Wake County Sheriff's Office at (919) 856-6911.