The Solomon Islands Broadcasting Corporation reports that Keke and some of his followers made the plea at a prison reconciliation ceremony.
Keke was a leader in the Guadalcanal Revolutionary Army, a guerilla group which took up arms in the late 1990s and mounted a campaign of intimidation against Malaitans on Guadalcanal.
He is serving a life sentence for murder after he arrested by peacekeepers in 2003.
The Corrections Service said Keke apologised to his victims at the ceremony and pleaded for forgiveness.
Source:
RNZ Pacific