In the election, he placed fifth out of eleven candidates and received 3.22% of the vote. On April 21, Massi signed an agreement to support Bozizé in the second round of the election, and after Bozizé's victory, Massi became Minister of State for Equipment, Transport and Civil Aviation in the government of Prime Minister Élie Doté, which was named on June 19, 2005. In a cabinet reshuffle on September 2, 2006, he was instead appointed as Minister of State for Rural Development; he served in the latter position until he was excluded from the government of Prime Minister Faustin Archange Touadéra in January 2008. A few months after his dismissal, Massi was appointed as Political Coordinator of the Union of Democratic Forces for Unity (UFDR) rebel group on 12 May 2008; FODEM responded to this by suspending Massi from the party on 16 May, and he was expelled from the Presidential Majority on 18 May. FODEM established a provisional political bureau on 22 May 2008 with Joseph Garba Ouangolé as President, and it expelled Massi from its ranks. In early June 2009, Massi attempted to enter the Central African Republic from Chad and was arrested by the Chadian authorities, who announced that they would put him on trial for "attempting to destabilize a neighbouring country". The Chadians reportedly released Massi after a time, however. Massi's group, then called the Convention of Patriots for Justice and Peace (CPJP), continued to fight the government in the northwest of the Central African Republic; by that point it was the only rebel group still active. Massi's wife Denise and the CPJP said on 16 January 2010 that Massi, who they said was held at the Central African prison of Bossembélé, had died on 8 January from the effects of torture. Their information was said to have come from sources at Bossembele as well as sources around the Presidency. If they were wrong in believing Massi was dead, their statement called on Bozizé to prove he was still alive. The Central African Ministry of Defense formally denied killing Massi in a statement on 21 January and said that the government did not know where he was. Later, on 30 January 2010, President Bozizé acknowledged that Massi had been killed, although he provided no details. He was dismissive of the concerns of human rights groups, saying that those groups had not shown similar concern "when 15 of our soldiers were killed by Massi's rebels".