21-year-old man charged after fatal shooting inside Mundelein apartment

A 21-year-old man was charged in the shooting death of a man inside an apartment in Mundelein, Illinois, on Tuesday morning.

Police said Deandre Harris was charged with two counts of first-degree murder and aggravated battery with a firearm. 

At 11:40 a.m., Mundelein police were called to a building in the 500 block of Deepwoods Drive following the shooting. Investigators determined Harris was visiting his girlfriend inside the apartment and got into an argument with a 48-year-old man who lives in the same apartment. 

Police said during the argument, Harris took out a pistol and started shooting, hitting the 48-year-old man. Police said the victim's girlfriend, a 47-year-old woman, was also hit by gunfire. 

The 48-year-old man died at a local hospital. The Lake County Coroner's Office identified him as Herbert Lomax of Mundelein.  

Mundelein police said the gun was later found inside Harris' vehicle. 

Harris is due in court on Wednesday morning. Police said the state's attorney's office will file a petition to detain Harris while awaiting trial. 

The Lake County Major Crimes Task Force and Mundelein police are investigating.