Updated

Prosecutors say a Houston woman was at a bar with her boyfriend when another man offered her a drink, causing an argument that escalated into her fatally beating her boyfriend with a stiletto high-heel shoe.

Forty-four-year-old Ana Trujillo is charged with murder in the death of 59-year-old Alf Stefan Andersson. She was being held Wednesday in the Harris County Jail on $100,000 bond. Her attorney says Trujillo acted in self-defense.

The Harris County District Attorney's office says the couple had wine and tequila before the argument erupted.

District attorney spokeswoman Sara Marie Kinney says Trujillo told police the fight escalated when they returned to her apartment and Andersson grabbed her. Trujillo told police she hit him with her shoe.

Kinney says Andersson was dead when police arrived.