YOUNGSTOWN — Daniel P. Sullivan II, 19, of South Glenellen Avenue, pleaded guilty Wednesday to reduced charges of voluntary manslaughter and aggravated robbery in the March 3, 2018, killing of Brandon Wareham.

Police say Wareham was shot to death while sitting in his car on Rhoda Avenue on the West Side. He had gone there to sell marijuana and was allegedly shot by a co-defendant of Sullivan’s, Mark Winlock Jr., 19, of Deer Creek Court in Austintown.

Sullivan also pleaded guilty to a specification that a gun was used, which adds three years to his prison sentence. Sullivan, who has agreed to cooperate with prosecutors, could get about 23 years in prison when he is sentenced later. He will not be sentenced until the cases are over for his co-defendants.

Prosecutors are recommending that Sullivan get 14 years in prison, but his attorney will ask for 10. The case is being heard by Judge Anthony D’Apolito of Mahoning County Common Pleas Court.

A trial is scheduled for Jan. 27 for Sullivan’s co-defendants, Winlock and Michael Sherman, 20, of Wesley Avenue. All three men were indicted on aggravated murder, murder and aggravated robbery.

Girls ages 15 and 17 were also charged with complicity to commit murder and aggravated robbery in late 2018 in the case. The aggravated robbery charges relates to the attempted theft of marijuana from Wareham.