RED LIGHT MESSENGER: Preston has been delivering messages and drugs in the Red Light for 6 months and knows the ropes thoroughly. "A lot of these girls are my regular customers. I carry 'em messages and get 'em drinks, drugs, etc. Also go to the bank with money for 'em. If a fellow treats 'em right, they'll call him by number and give him all their work. I got a box full of photos I took of these girls - some of 'em I took in their room."