Complex sentence: Spengler's 67-year-old sister Cheryl, whom he was living with during the shooting, has been declared missing following the incident, and a severely burnt body found inside Spengler's house is suspected to be hers.
Split into simpler sentences: Spengler's 67-year-old sister Cheryl, whom he was living with during the shooting, has been declared missing following the incident. A severely burned body found inside Spengler's house is suspected to be hers.