A 20-year-old woman in Nevada who authorities say "had a fascination with firearms" is accused of shooting her boyfriend dead while he was photographing her posing with a gun. Allysandra Blea was taken into custody last week and charged with one count of open murder in the slaying of 23-year-old Mark Gaughan, authorities announced.

According to a news release from the Las Vegas Metropolitan Police Department, officers responded to a call reporting a man being shot in the 1000 block of Nassau Drive at about 4:47 a.m. on Aug. 23.

Blea placed the 911 call and told the emergency dispatcher that it was an "accidental shooting," Las Vegas CBS affiliate KLAS reported .

Upon arriving at the address, first responders found a man — later identified as Gaughan — lying outside on the sidewalk and s

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