If you go directly by the
Indiana Penal Code for the definition of murder, that's a slippery slope. Murder is only for one individual who intentionally kills another. However, IC 35-42-1 (2) noted below could leave some interpretation because if this was a pedo ring type of thing, anyone who helped RA lure the girls to the bridge that day may be guilty of one of those crimes which led to murder.
IC 35-42-1-1Murder
Sec. 1. A person who:
(1) knowingly or intentionally kills another human being;
(2) kills another human being while committing or attempting to commit arson, burglary, child molesting, consumer product tampering, criminal deviate conduct (under
IC 35-42-4-2 before its repeal), kidnapping, rape, robbery, human trafficking, promotion of human trafficking, sexual trafficking of a minor, or carjacking (before its repeal);