|A University of Nairobi lecturer who police held on suspicion he was the Rwanda genocide fugitive Felicien Kabuga, was sacked from Rwanda Cabinet in 1994.
Mr Charles Nyandwi, who resembles Mr Kabuga, also told detectives that he had been teaching at the Nazareth University.
He showed detectives a copy of a revocation letter to Kenyan authorities in which he denounced his Rwandese citizenship before becoming a Kenyan.
Sources close to the investigations also told the Nation that the man had widely travelled, regularly flying to European countries, including Germany and Belgium where his daughter lives. He used a Kenyan passport.
In Kenya, detectives traced his home in Ngong where he lives with his wife.
Presently, detectives are struggling to establish his relation to Kabuga since they sat in the same Cabinet prior to the 1994 genocide in Rwanda.
Other details show the man came to Kenya after being sacked. He had been a minister from 1980 to 1994.
However, fresh details emerging indicate Mr Kabuga has a son-in-law in Kenya.
The son-in-law, sources told the Nation, makes errands for Mr Kabuga.
The investigating team could, however, not establish if Mr Kabuga was in Kenya as alleged.
Mr Nyandwi was allowed to go home after spending a night in police custody.
The Nation also established that more teams have been assigned to the probe. They include National Security Intelligence Service as well as Intelligence attaches from US and Rwandese embassies. Belgium embassy officials are also following the matter.
Police spokesman Eric Kiraithe, in a statement, said they had been holding the wrong man. He had been arrested on Friday evening.
The Rwandese embassy in Kenya said Mr Kiraithe had also confirmed the identity of the man.
Mr Kiraithe said in the statement that police were acting on information received at the CID headquarters that a person suspected to be Mr Kabuga had been sighted in Ole-polos near Ngong in the outskirts of Nairobi.
Officers attached to the Diplomatic Police Unit had picked him up believing he was Mr Kabuga, who is wanted in connection with the 1994 Rwandan genocide by the International Criminal Tribunal for Rwanda.
Kabuga has been on the run for 14 years, since the 100-day slaughter in which 800,000 of his countrymen, primarily minority Tutsis and politically moderate Hutus, were hunted down and killed by Hutu extremist militias and members of the Rwandan army.
Mr Kabuga, a Hutu and close associate of President Juvenal Habyarimana, owned Radio de Mille Collines that called for the mass murder of Tutsis and others.
The lecturer was taken to the Diplomatic police headquarters in Gigiri and held for several hours and later transferred to Special Crime Prevention Unit headquarters in Milimani.
Foreign Affairs minister Moses Wetang’ula said the lecturer he identified as Charles Nyandwi fled Rwanda for Kenya when the genocide began in April 1994.
He said the Rwandan government had corroborated Mr Nyandwi’s details.