A suspect has been arrested in the death of a 29-year-old man who was fatally shot early Sunday in Uptown, Dallas police say.

Christopher Rommell McKinney Jr., 23, has been jailed on a murder charge in the death of Demondre Green. Bail has not been set.

McKinney met with detectives Tuesday and confessed to the killing, police said.

Christopher Rommell McKinney Jr. (Dallas County Jail)

Green was shot about 2:15 a.m. Sunday while he was parked in the 3000 block of Routh Street with another man, whom family members have identified as his brother.

Green didn't have enough room to get out of the parking space because McKinney's vehicle was behind him, according to an affidavit. When Green tried to move his car, he hit McKinney's vehicle and McKinney pulled out a gun.

McKinney walked up to the driver's side of Green's car and fired multiple times, striking Green and his brother before he drove off.

Green died at the scene and his brother was taken to the hospital for wounds that weren't life-threatening.

The next day, a Dallas police detective met with Green's brother, who identified McKinney from a photo lineup as the gunman.

Green, who went by the nickname DeeJay, left behind a 10-month-old son and two daughters, according to a GoFundMe campaign set up for his family.

Jessica Hermosillo, who said she had planned to marry Green in a few months, described him on Facebook as a devoted father who "touched everyone's lives."