The Jan. 28 no-knock raid sent bullets flying in the small home owned by the Tuttles for decades.
In the aftermath, two officers were suspended and eventually retired. A third remains on leave.
The Harris County District Attorney's Office has charged fired Officer Gerald Goines with two counts of first-degree murder.
Former Officer Steven Bryant was also charged with a count of tampering with a government document.
Two HPD officers testified before a federal grand jury in the case, the Houston Police Officers' Union confirmed.
Watch the video above to see what has happened since the police entered the house on Harding Street on Jan. 28.
LATEST HARDING STREET RAID NEWS: