I think a bit skepticism is due here. Their "proof" that Chepiga and Boshirov are the same person rests almost solely on a supposed strong resemblance between a photo of Chepiga taken in 2003 and photos of Boshirov from 2009 and 2018. I have stared at the photos for a long time and I am not sure they are the same person. Chepiga's eyebrows and bottoms of ears look different. I am not saying that they are not the same person but neither am I convinced they are.