We sometimes punish not just those who commit a crime, but those who help prepare or recover from a crime. We also may punish people who plan to commit a crime but never actually go through with it.
Felony murder cases are a great example of this. Here are just a few cases:
https://www.themarshallproject.org/records/1050-felony-murder-rule
Illinois changed its controversial ‘felony murder rule.’ Here’s who the reform left behind.
https://www.pghcitypaper.com/news/pa-supreme-court-rejects-challenge-to-felony-murder-law-22674022
If your last name starts with A-M, you are pro-felony murder laws. If your last name starts with N-Z, you are against felony murder laws. Make your arguments based on caselaw, psychological findings, whatever you can find that is reasonably reliable.
Potential questions for discussion: How do felony murder laws fit in with our understanding of the goals of the criminal justice system? Do these laws, as some of these articles claim, disproportionately impact minorities and/or women? Should we get rid of felony murder laws? Do other countries have these laws? Do felony murder laws potentially violate the Constitution?