Hi Dan,
I'm not familiar with those boats, they're all the same to me, and there' s been a lot of different info flying around...
But the pics definitely show it to be a Mac, with no keel and a kick-up rudder...
What makes the whole thing even sadder, looks like this deal was being conducted by a non-profit organization dedicated to getting people with special needs out on the water...
http://www.heartofsailing.org/default.asp
best regards,
Jon