What we know about trapped teen's mysterious death inside a van after his 2 calls to 911

What we know about trapped teen's mysterious death inside a van after his 2 calls to 911  ABC News Ohio teenager suffocates in van after twice calling 911, leading to investigation  NBCNews.com 911 dispatcher who answered call from boy crushed by minivan seat complained about job days before incident  Fox News Teen calls 911 before dying near Seven Hills: 'Tell my mom I love her'  WLWT Cincinnati Cincinnati Police review: 911 operator said she couldn't hear dying teen's final call from Seven Hills  Cincinnati.comFull coverage