Definition - What does Felony Murder mean?
Felony murder is the charge that is levied against a criminal that kills someone while in the process of carrying out a felony. For example, if someone dies while a bank is being robbed, the death would be considered felony murder.
Justipedia explains Felony Murder
Felony murder indicates that there were actually two felonies committed: one being the base felony and the other being the murder that resulted from the base felony.