Horror at a high school track meet as an argument breaks out between two athletes. One pulls out a knife and stabs the other in the heart, killing him. The details are heartbreaking with the stabbed teen dying in his twin brother's arms. And the Michigan couple thrown in a maximum-security prison in Mexico all over a time share dispute has now been freed. There were hugs all around when they touched down on American soil. Plus, Scarlett Johansson is breathing a sigh of relief - because the man she accused of stalking her is under arrest. The actress says he's been showing up at her Hollywood home and now cops say he's made his most brazen move yet... threatening to blow up Saturday Night Live's New York studio where Johansson’s husband is a cast member.  And authorities in Los Angeles say it will take another 18 months to recover from those devastating wild fires, but now comes a new threat… unused swimming pools have become breeding grounds for disease carrying mosquitos.