Similarities between Lethal Weapon & Seven

Brad Pitt and Riggs have lost their wives. As King noted several heroes have been widowered, typically ( and in these 2 cases) by the action of the criminals with whom they have fought. Also as King noted cops bring danger to their families by provoking criminals. Riggs & Sommerset ( Morgan Freeman) both were so committed to the job that they pay very little attention to their home lives. Another similarity i found was that both Morgan freeman and Danny Glover both act as mentors to their white counterparts, as if they need to some them they way.