Complex sentence: Criminologist D. Kim Rossmo created the "Rossmo Formula" to explain his ideas on serial offences and geographic profiling and to determine where criminals lived and why specific locations were chosen as places to commit crime.
Split into simpler sentences: Criminologist D. Kim Rossmo created the "Rossmo Formula" to explain his ideas on serial offences and geographic profiling. The formula was created to determine where criminals lived and why specific locations were chosen as places to commit crime.