According to Brazilian news reports the politicians presumably linked to the murder are three Rio de Janeiro state deputies belonging to President Michel Temer's MBD party who are in prison serving time for corruption.
Marcelo Freixo, a leftist state deputy and Franco's political mentor who in 2008 discovered the underground paramilitary groups, said that he was called to testify about the possible role of the three jailed deputies in the murder.
"We are not accusing anyone. That is the job of the Civil Police," Freixo wrote on Facebook. "Our job is to press for an answer. We want all of the (murder) theories investigated."