For those arguing about public use - building management has been aggressively trying to get vagrants out of the park. For a while there was a mattress stored in the sheltered area behind the ramp where addicts would sleep. It was filled with trash and drug paraphernalia necessitating a hazmat...
Boston Business Journal reporting that John Grayken bought the penthouse.
http://www.bizjournals.com/boston/real_estate/2016/06/he-already-owns-an-island-off-cohasset-now-this.html?ana=twt