Complex sentence: The murder scene was particularly grisly for the day, as Mahon had carved his victim, Emily Kaye, into several pieces, attempted to burn them, boiled them, and had been caught throwing small pieces out of a train.
Split into simpler sentences: The murder scene was particularly grisly for the day, as Mahon had carved his victim, Emily Kaye, into several pieces, and then attempted to burn the pieces. When that proved unsuccessful, he boiled them, and had been caught throwing small pieces out of a train.