The young man in Falcon who killed his girlfriend's baby girl and little boy, then killed himself, was already under investigation for a violent felony, and it was caught on video. It happened roughly 3 weeks before he killed the children.
Alberto E. Rodriguez/Getty
CNN, U.S. government photos, Twitter, YouTube/Arirang
CNN, US District Attorney, Art Lien, FBI, Sean Murphy/Boston Magazine, Massachusetts State Police, WBZ
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