At 10 00. Our big story tonight at 10 00, the reward in the serial street shooter case up to 75,000 and tips continue to come in. But there is concern tonight that a huge portion of the valley is still completely unaware that there is a killer on the loose. William pitts is live at Phoenix Police headquarters with why. Reporter the key to this is to get absolutely everybody looking and some hispanic leaders say that is just silent witness. They have a way to keep anyone from knowing you tip them off. First its a code name. It is not that cool. A combination of numbers and letters. Reporter that is how they know you. No numbers, no names. If you give cops info leading they are told a location to go. They walk into a bank. They provide their number. They are not asked to show any id. They are handed the cash and they walk out. Reporter but silent witness has to get the tips first. Some in the Hispanic Community say that is the problem. Families dont know about the shooter. [ speaking spa