Mark Stanko and Tracy Denell of Alsip are charged with home invasion, armed robbery, and burglary.
Investigators say they are responsible for a home invasion last month in unincorporated Willowbrook. A female homeowner was sprayed in the face with a chemical substance and then robbed.
Investigators also believe they may be responsible for a series of similar home invasions in the south suburbs targeting people who had recently had furniture delivered.
