I saw a news story about that, and when I noticed flags at half-staff in Houston on a city building, I thought maybe they'd been lowered for him. I didn't hear about former Gov. "Vinegar Bill" Clements' passing until much later.
Not sure why the flags are still at half mast...I thought it was due to the lazyness of city workers and building managers to get them back up to full staff after the Holiday...