tisha thompson with the i-team is here to tell us about what this day's developments mean to the city government in days to come. >> reporter: jim, it has been a rough couple of months at the wilson building. d.c. chairman kwame brown is the fourth person charged by the u.s. attorney's office in the past six months. city council member harry thomas jr. resigned his seat after pleading guilty in january to stealing more than $350,000 in government money and filing false tax returns. he's been sentenced to 38 months in prison. last month, in a separate investigation involves mayor vincent gray's campaign, thomas gore, he's there, close friend of the mayor and assistant treasurer to the campaign pleepded guilty to breaking d.c. election laws and obstruction of justice. he destroyed a notebook containing records showing secret payments. two days later, another gray supporter, howard brooks, there he is, pleaded guilty to lying to federal investigators about making those secret payments. this has many wondering if the mayor is the next target of the u.s. attorney's office, which makes toda