I'm very sorry for your loss. Food is love for sure, especially when prepared with care for others, it make sense you would remember that beef stew vividly, it made you feel cared for by him. Screaming about babaganoush was maybe his son expressing his fear and sorrow over his dad, not ideal but grief comes out in weird ways especially in a culture that makes no room for our grief outside a brief window. Loss and illness don't make us all angelic and best behaved, I say that as a cancer survivor. Some cancer patients I met were assholes, others were profoundly kind, and yes they unfortunately were always the most ill. I think death makes a certain noble kind of human brave. I hope your cousin found something like peace but his bravery was probably to make it easier on his family. Life is so unfair sometimes.