CBS News Correspondent Natalie Morales and 48 Hours Producer Betsy Shuller go behind their report on the murder of Alex Pennig. When Alex was discovered dead in her bathroom her friend, Matthew Ecker, called 9-1-1 and claimed she shot herself, but detectives uncovered a different story. The team discusses the bodycam footage of first responders interviewing Ecker just minutes after Alex's death, the conflicting evidence surrounding who fired the gun, and the unusual friendship between Alex and Ecker.

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