A boy who recently graduated middle school drowned yesterday afternoon after jumping into the Reynolds Channel off Long Beach. Leo Vann and his friends had been at the skateboard park, and Vann decided to jump in to cool off. Though Vann reportedly could swim, it's believed he got caught in the undercurrent. Witnesses were unsuccessful in saving him and it took rescuers over 30 minutes to pull Vann from the water. His mother questioned why the skateboard park wasn't better supervised (however, Newsday noted a "no swimming" sign nearby).