talk to 24-year-old fidel silva and 19-year-old jaime cardenas, in connection to the murders of catherine fisher hugo chavez. fisher from menlo park was gunned down on july 30, while she was in a car. 26-year-old chavez was killed six days later. police say they received tips that point to cardenas and silva as suspects. a third man christian fuentes was picked up for a parole violation. they are named in two armed robberies and a shooting in grand junction, colorado. they are considered armed and dangerous. >> a flaw in the parole system could be the reason a marin county deputy lost his life. the district attorney says the court did not know that thomas had a history of making threats f. they did he may not have been freed on probation for drug charges. a month after his last court date he shot and killed deputy jim mathison during a confrontation at the home of hallerin's ex-girlfriend. they didn't review documents including restraining orders from his ex-wife and girlfriend. investigators did not turn over the documents because they didn't seem relevant to the drug charges. >> 5:45 now. frie