ing for the weapon, one officer fired his gun. 

It is unclear whether the department believes protocol was followed.

Police investigation

What's next:

Police did not find a gun on Johnson, but they did recover an empty gun box matching the description of the reported firearm and ammunition matching a spent shell casing recovered outside.

Police also said several people came in and out of the home after the gunfire before the scene could be secured.

Fort Worth police declined to make anyone available for an on-camera interview Friday.

The department's Major Case Unit continues to investigate the shooting.

The officer involved is a two-year veteran of the Fort Worth Police Department.