Complex sentence: Others have suggested the shooting was orchestrated by government officials for political reasons, similar to some 9/11 conspiracy theories which many also promote the theories alleging government involvement in the attack claim that it was set up to push stricter gun control laws.
Split into simpler sentences: Others have suggested the shooting was orchestrated by government officials for political reasons, similar to some 9/11 conspiracy theories which many also promote. The theories alleging government involvement in the attack claim that it was set up to push stricter gun control laws.