"Freedom for Razhden Shulaya" - Nice and detailed article about Razhden's case. Only in Russian tough. You can translate in english with online translator.
https://crimerussia.com/criminalaut...-amerikanskoy-tyurmy/?sphrase_id=1422260

New facts - Shulaya group was also in conflict with Armenian crime groups, maybe that could be the possible lead to the fight with Colombian inmates.