One of those has been identified by several sources as Yosle Fried (also known as Yosle Fleet). He is reputed to be an enforcer for the Williamsburg Vaad Hatznius which is aligned with the Zaali faction of Satmar. He is the guy whose jacket is off in the picture. He was engaged to be married on October 31, 2012. So I would guess he is about 20 years old.
A few minutes ago (11-29, 7:50 pm) Avi Burstein (@aburstein) tweeted that he uploaded a video of the three arrested for taking pictures. Again, another source says 4 people were arrested for taking pictures. Another of those arrested is Lemon Juice (yes that really is his legal name). Lemon Juice was in court as a supporter of the victim and I am guessing that he took pictures of Weberman. I do not know if he emailed them. I am puzzled by his motive.