reporter: appearing in court for the first time since the july fourth massacre, prosecutors say shooting suspect robert crimo, iii admitted to opening fire on parade goers celebrating independence day in highland park, illinois. authorities say three 30-round magazines and 83 spent shell casings were recovered and crimo was considering another shooting in madison, a 2.5 hour drive away. he did see a celebration occurring in madison and he seriously contemplated using the firearm he had in his vehicle to commit another shooting in madison. reporter: a judge ruled he will be held without bond. [ gunshots ]. reporter: the state s attorney is charging the 21-year-old with seven counts of first-degree murder. the fbi is also considering federal charges. these are just the first of many charges that will be filed against mr. crimo. i want to emphasize that. there will be more charges. we anticipate dozens of more charges centering around each of the victims. reporter: n