The women were (allegedly) involved in crimes ranging from making up fraudulent documents to first degree murder. Another thing worth noting is that some women acted alone or with other women. For example, two women (image 10 and 11) were arrested for robbing a couple and shooting the man after taking his wallet:
Desiree Hollis and Bobbie Griffin, both 20 years old, were accused of demanding money from a couple walking on the Near West Side on Dec. 11, 2008, then shooting the man before fleeing, police said. Hollis, of the 100 block of North Leamington Avenue, and Griffin, of the 5800 block of West Walton Street, were tracked down shortly after the couple flagged a police car.
Patricia Pearson, in her book, When She Was Bad...: Violent Women and the Myth of Innocence
says that women may increasingly work in pairs or alone. Joyce Carol Oates once said that "Most often, [women] are merely the distaff half of a murderous couple whose brain-power is supplied by the man." I don't think this holds true anymore, if it ever did.