Complex sentence: Law enforcement started searching for Boziev in 2011 but he went to the forest after he was ordered not to leave where he then joined the group of local armed underground and eventually became the primary candidate as the replacement KBR gunman following the death of the groups leaders.
Split into simpler sentences: Law enforcement started searching for Boziev in 2011 but he went to the forest after he was ordered not to leave. He then joined a group of local armed underground and eventually became the primary candidate as the replacement KBR gunman following the death of the groups leaders.