In August 2015, Edeliza Sumbahon Ulep, alias Gina Perez, was arrested at Trento, Agusan del Sur during a joint manhunt operation by police and military units. Ulep was tagged as the ransom courier in the kidnapping. In August 2016, "The Manila Times" reported the arrest of the kidnap-for-ransom group of Barahama Alih sub-leader, Hasim Calon alias Husien (also a notorious drug dealer), in his hideout in Tenan village in Ipil town. Hasim Calon was involved in Rodwell's abduction. Earlier in 2016, police forces killed Waning Abdulsalam, a former MILF leader, in the village of Singkilon. Abdulsalam was one of the most wanted criminals in the southern Philippines and connected to ASG. He was linked to the kidnappings of Rodwell in 2011, Irish missionary Michael Sinnott in 2009 in Pagadian City, and Italian Catholic priest Giancarlo Bossi in Zamboanga del Sur's Payao town in 2007. In March 2019, combined security forces of the 44th Infantry Battalion, Philippine National Police, Philippine Drugs Enforcement Agency, National Bureau of Investigation and Philippine Coast Guard arrested five members (Benhazer Anduhol, Solaiman Calonof, Nicanel Maningo, Jay-ar Abba Quartocruz and Hashim Lucas Samdani) of Barahama Alih criminal gang during drug operations with warrants in Barangay Tenan of Ipil town, Zamboanga Sibugay. Military sources allege Barahama Alih Group was responsible for a number of kidnapping incidents in previous years including the abduction of Australian national Warren Rodwell, Italian priest Giancarlo Bossi, and some local Filipinos.