THey should have listened when he said 'Get off my lawn'
Seriously though the story doesn't wash....picking someone up to go ice skating at 10PM in an area known for a lack of real winter. While possible it stretches some degree of credibility.
Second an old white guy came out...he went back in and you didn't realize you were in the wrong place? And he comes out again with a gun and your first response isn't to leave? He fires a shot in the air and you still don't think to leave?
Generally speaking if the guy wanted to kill them he wouldn't have fired a shot in the air...dude would have been firing at them from the start. For him to go shot in the air and then shoot at them, suggests they did something to change the situation.
Plus a .22 caliber pistol isn't going to penetrate the front windshield of any car...hell a 9mm, 45...most any pistol caliber round will do nothing against tempered glass in any windshield.
Plus dude isn't going to hold the rest of them at gun point until the cops show up if he intended murder. Especially since I'm betting he or his wife was the one to call the cops.
Lots of holes in the story hard to jump to any conclusion over who was right or wrong that's what the legal system will be fore.