I don’t know the uncle is muslim.
Of coures the uncle is Mozlem. It’s a Mozlem clan. When Tamarlan was visiting his father in Dagestan (the family has some roots there), a woman was quoted as saying “We’re all Mozlems here”.
If the uncle was NOT a Mozlem that would mean he quit Islam and is thereofre an apostate target. And if he had left Islam, he would know the dangers of Islam and would have mentioned it.
Therefore, he is lying.
Plus, they wore $900 shoes and drove Mercedes and similar expensive cars. Is that being “losers”? The older one married an American girl. Who then converted to Islam to please hubby. Come on.
I don’t think the uncle is particularly religious. He reportedly told his nephew “Islam will always be there, don’t worry about it. Get an education, get a job, make yourself useful. Don’t be a little (expletive).”