The request by Ana Lilia Trujillo was rejected during a court hearing Tuesday in Houston. Her attorney, John Carroll, plans to appeal the decision.
The 44-year-old Trujillo remains jailed on a murder charge with bond set at $100,000. She was indicted by a grand jury Monday. Her trial is scheduled for Jan. 7.
Prosecutors allege Trujillo stabbed 59-year-old Alf Stefan Andersson after the two got into an argument at his condominium in June.
Prosecutors say Andersson became angry when a man tried to buy Trujillo a drink at a nightclub the couple had visited earlier.
Carroll says Trujillo has "a very valid self-defense claim."
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