A botched no-knock drug raid that left two Houstonians dead was based on false information, a police investigation has revealed. On January 28, Houston Police Officer Gerald Goines obtained a warrant for a drug raid on a local home, claiming one of his confidential informants had purchased heroin there. The no-knock search led to a shootout, leaving the home's two residents dead and four officers with non-fatal bullet wounds. Police investigators interviewed all Goines' informants after the raid. All denied ever going to the house or buying drugs from its residents. However, two bags of heroin were discovered in Goines' car. "We know we've had a criminal violation already," Houston Police Chief Art Acevedo said. The investigation is ongoing.