Unknown medical emergency near Mason Road in Katy Heard on: Harris County Sheriff's Department Dispatch 00:06 00:00 for local (number withheld) Mason Road. Transcript This transcript is auto-generated from live dispatch audio and may be incomplete or inaccurate. It is not an official report and may change. 00:00 for local (number withheld) Mason Road. 00:04 David 20, go ahead and change this to a unknown medical. 2026-10-29 11:47 UTC Medical Emergency N Mason Rd, Katy, TX 77449 View on map