. >> reporter: as yolanda morris proved, it is possible. she was once homeless and suffering from depression and drug abuse. what do we tell people out there about these people, people like you were? >> have compassion when you see people out there. everybody has a story to tell. just have compassion and if you're not going to be for the solution, then you might as well be part of the problem too. >> reporter: so i wanted to leave with you that very important message. before the different agencies would have their own information and they wouldn't necessarily share that information with other agencies. now they are. for example, one will share information on who arrived here at this agency to receive services. another one will have their name. another agency will have, for example, where in san francisco they are located and now they are sharing all that information. that information was put into a database. that is how the city of san francisco arrived at this number 4,000. abc 7 news. >> thank you. we really do want to hear your ideas abo