Williams, a transgender inmate known on the inside as Yah Yah, glides past a hooting and hollering crowd of her fellow gay and transgender inmates, perched atop their beds for a prime view. With rouged lips, long hair and a strut that would give Naomi Campbell pause, Dave Williams, 47, works the 75-foot runway that stretches between crowded rows of green chipped-paint bunk beds at the L.A.