According to the statement of probable cause (posted on The Smoking Gun), McCarthy allegedly pulled a silver hand gun out of her vagina while having sex, and then proceeded to point it at her current boyfriend’s head saying, “Who is crazy, you or me?.” Apparently the two were in having an argument over space aliens. He then took the gun away from her and threw it in the toilet, and then decided to throw it in the trash.
Here is more from The Smoking Gun:
According to public records, McCarthy married the publicity-shy Cormac McCarthy in Nevada in January 1998. The couple, parents to a teenage son, divorced in Texas in 2006. McCarthy did not respond to a Facebook message seeking comment about her arrest.