Simplify the following text for a Grade 13 native English-speaking person.
Original: Although he was not personally involved in the bombing of the Communist Party headquarters , Chernyi was , because of his association with the Underground Anarchists , a likely candidate for a frameup .
Simplified: Although he was not involved in the bombing of the Moscow Communist headquarters , he was , because of his association with the Underground Anarchists , a likely candidate for a frame-up .