Complex sentence: Most notably, Breckon, who was working for "The Weekly News" at this point, captured the police attack on Maungapohatu in April 1916, which resulted in Rua Kenana and some of his followers made to stand trial for sedition.
Split into simpler sentences: Most notably, Breckon captured the police attack on Maungapohatu in April 1916. This event resulted in Rua Kenana and some of his followers made to stand trial for sedition.