Suspect Roseni Gonzales, 24, Passi City, Iloilo, was detained at the Mandurriao police station but was not booked for the rob-slaying but for violating his probation in a separate case of illegal possession of firearms.
He gave himself up to Superintendent Mario Abraham Lenaming, Iloilo City police intelligence chief, but denied robbing and killing Misajon.
He was brought to the residence of Justice Secretary Raul Gonzales in Jaro district where the former congressman read him his rights as an accused.
The suspect claimed in a radio interview that he was home at the time Misajon was robbed and attacked on Sept. 23 in a vacant lot in Barangay San Rafael in Mandurriao district. Misajon died two days later.
He denied knowing another suspect, Richard Barrios, but admitted he is the first cousin of Jessie Jamili, formerly a suspect but was taken in as witness by the 6th Criminal Investigation and Detection Group.
Meanwhile, the CIDG Bacolod City has reopened its investigation into the gunslaying of Negrense broadcaster Danny Llasos in Bacolod six years ago.
Superintendent Jose Jorge Corpuz, 6th CIDG regional chief, said they are working with Llasos family and the city police to establish more concrete leads in their investigation.
Llasos, a reporter of RMN-Bacolod, was shot dead by a still unidentified man inside his lotto outlet on Lacson street shortly before the May 1998 elections.