Complex sentence: The weekly tabloid "Blitz", run by R. K. Karanjia, a Parsi himself, publicised the story, ran exclusive cover stories and openly supported Nanavati, portraying him as a wronged husband and upright officer, betrayed by a close friend.
Split into simpler sentences: The weekly tabloid "Blitz", owned by R. K. Karanjia, a Parsi himself, publicised the story, published exclusive cover stories and openly supported Nanavati. They portrayed him as a wronged husband and upright officer, betrayed by a close friend.