A third man now is being held in DuPage County on $2.5 million bond on charges related to the January murder of a Bensenville convenience store clerk.
Stephan A. Russell, 20, of Chicago, was charged Thursday with four counts of harassing a family member of a witness and two counts of intimidation using physical harm.
Officials said the charges stem from accusations Russell threw a bottle at the head of the mother of one of the other two men charged in connection with the Jan. 19 slaying of Hussein Saghir at Sam's Tobacco and Foodmart in Bensenville.
DuPage County State's Attorney Robert Berlin said Thursday "there may be additional charges" brought against Russell in connection with the case.
Bensenville police Chief Frank Kosman declined to discuss Russell's arrest.
"It's all part of a much larger, ongoing investigation," he said.
Two men, Kenneth Bardlett, 20, of Bellwood, and Tremayne Davis, 23, of Chicago, are already in custody and each are being held on $2.5 million bonds for their alleged roles in the slaying.
Prosecutors maintain Saghir and another employee were closing the store at 235 W. Irving Park Road just before 6 p.m. when they were confronted by Bardlett and another man who so far has not been identified.
Saghir refused to re-enter the store, apparently because he wanted to protect his 3-year-old nephew who was inside. After a brief struggle, authorities said Bardlett's accomplice shot and killed Saghir.
Bardlett is charged with first-degree murder and armed robbery.
Prosecutors say Bardlett, who has previous convictions for unlawful use of a weapon and reckless conduct, confessed to planning the armed robbery, thinking the men wouldn't get caught because they were outside their neighborhood. Bardlett also confirmed he is the second man shown in a surveillance video that captured the armed robbery attempt and eventual shooting.
Davis, who authorities say served as the driver for the two other men, faces charges of first-degree murder, attempted armed robbery and obstruction of justice.
The search continues for a fourth man authorities believe also was involved in the case.