He was one of the five persons for whom the International Criminal Court (ICC) issued its first arrest warrants on 8 July 2005 in its investigation in Uganda.
[4] He is alleged to have led the Barlonyo massacre in February 2004, during which more than 300 villagers were shot, hacked and burned to death.
Otti's push to negotiate an end of the conflict led to tension with Kony and a growing split in the LRA.
[7][8] He was charged with 21 counts of war crimes (including murder, pillaging, inducing rape, forced enlisting of children, intentionally directing an attack against a civilian population, and cruel treatment of civilians) and 11 counts of crimes against humanity (including murder, sexual enslavement, and inhumane acts of inflicting serious bodily injury and suffering).
[14] The President of Southern Sudan, Salva Kiir Mayardit, said on 7 November 2007 that Otti's status remained unclear.
[14] The government newspaper New Vision reported on 22 November, based on statements from LRA defectors, that Otti had been executed by firing squad, along with "many others", on 2 October.
Inside the house, however, LRA commanders held Otti at gunpoint and told him that he was arrested; he was then bound, blindfolded and taken outside, where he was shot, despite his pleas for mercy.