Is malt liquor a factor in higher murder rates?

MPR's Lorna Benson reports a study says malt liquor could be factor in higher murder rates. According to the article,

[Principle investigator Rhonda Jones-Webb] said malt beverages are associated with heavier drinking and aggressive behavior. She says that could contribute to higher homicide rates in African American communities.

Could contribute. Later on in the piece, Jones-Webb goes on to clarify her team would need to conduct more research before proving a link between malt beverages and higher homicide rates. Can a report accurately define the link? What other variables are involved?

I'm just going to open the floor to reactions on this. Submit a commentary with your opinion or perspective.