Professor Reid Fontaine's article, Adequate (Non)Provocation and Heat of Passion as Excuse Not Justification, makes a convincing case for treating heat of passion wholly as an excuse not a justification, as the only sensible way to comprehend its various forms. In doing so, Professor Fontaine stimulates further thinking about heat of passion doctrine, along two dimensions.
The Values of Interdisciplinarity in Homicide Law Reform,
U. Mich. J. L. Reform
Available at: https://repository.law.umich.edu/mjlr/vol43/iss1/4