Both, actually.
Maybe the Martin boy was an onlooker who jumped in to help.
Wonder what gender the 4 injured teens were.
Interesting that most stories (that I have seen) are posting pictures of the three dead girls and not the dead boy.
More to this story...
Okay, just found a story that had all of the injured as girls.
I am guessing that Martin was probably a good Samaritan that stopped to help.
So sad.