by Mike Hixenbaugh, Houston Chronicle, and Charles Ornstein, ProPublica,
by Charles Ornstein, ProPublica, and Mike Hixenbaugh, Houston Chronicle,
by Mike Hixenbaugh, Houston Chronicle, and Charles Ornstein, ProPublica,
by Mike Hixenbaugh, Houston Chronicle, and Charles Ornstein, ProPublica,
by Kate Womersley, special to ProPublica,