Complex sentence: The army and police denied responsibility, pointing the finger at fictitious right-wing "death squads" and anti-communist fronts under numerous acronyms such as RAYO, NOA, CADEG and others.
Split into simpler sentences: The army and police denied responsibility, pointing the finger at fictitious right-wing "death squads" and anti-communist groups. These shadow organizations went by numerous acronyms such as RAYO, NOA, CADEG and others.