Why was Paul Sadala, the leader of DRC militia, pursued?

(6)The manhunt has resumed for the leader of a DRC militia that attacked a wildlife reserve in June. Six people were killed and 14 endangered forest giraffes, known as Okapi, were slaughtered. He had been in the custody of a rival militia, but somehow escaped.
    Paul Sadala is the leader of the Mai Mai/Simba rebels in northeastern Ituri Province. He goes by the alias Morgan. He had long been wanted for elephant poaching and illegal mining within the Okapi Wildlife Reserve.(6)Now he’s wanted for an early morning attack on June 24th at the Okapi Conservation Project in Epulu.
    Rebels first attacked and burned the headquarters of the Institute in the Congo for the Conservation of Nature or ICCN. They then attacked the conservation project about a hundred yards away, killing the guards and the Okapi, then ransacking and looting buildings of equipment, food and fuel. Many Epulu residents fled the town. It’s believed the attack was in retaliation for efforts to stop Morgan’s illegal activities.