Demarco Waters of the 2700 block of Lola also was convicted of three counts of attempted first degree murder, one count of attempted second-degree murder and employment of a firearm in the commission of a dangerous felony.
He was automatically sentenced to life in prison on the murder and will be sentenced March 27 by Criminal Court Judge James Lammey Jr.
The incident occurred on Sept. 4, 2014, in an apartment in the 2700 block of Ketchum when waters knocked on the door, walked in and shot and killed Marvin Cole, 21, after asking him a question.
Waters then shot and wounded two other men seated beside Cole and then fired at, but missed, three other men in the apartment.
Surviving victims said the shooting apparently was the result of an earlier altercation between Waters and Cole.
The case was handled by assistant district attorney Colin Campbell of the DA’s Multi-Agency Gang Unit (MGU) Prosecution Team and by assistant district attorney Paul Hagerman of the DA’s Organized Crime Unit (OCU) Prosecution Team.
The MGU team handles homicide cases and other violent crimes associated with gang activity, specific targeted gang members and special cases assigned by the District Attorney General.
The MGU prosecution team works daily with the MGU Operations Team, using local ordinances and state and federal laws to hold offenders accountable.
About half of the unit’s caseload involves homicides, with the rest involving violent crimes such as aggravated robberies, kidnappings, rapes, attempted murders and narcotics cases