PP's father was a fire fighter in Swampscott for 30 yrs. Small, friendly town. All this time, no one says anything, no one is held accountable.
I was in college the year this happened. I hung out with a lot of people who smoked pot. Most of the students did. No one ever became violent when they got high. Ever. Booze was the only "drug" around back then that might make someone violent.
These people must have gone there angry and ready to harm Henry before they got high. What kind of people are these to commit such a vicious, evil act at the age of 15, then spend the rest of their life refusing to admit what happened? Isn't it bad enough they had to kill Henry? Apparently not, as they felt they needed to make his family and friends suffer all these years.