<Tr> <Th> Perpetrator </Th> <Td> Nikolas Cruz </Td> </Tr> <Tr> <Th> Charges </Th> <Td> 17 counts of first - degree murder 17 counts of attempted first - degree murder </Td> </Tr> <P> On February 14, 2018, a mass shooting occurred at Marjory Stoneman Douglas High School in Parkland, Florida . Seventeen people were killed and seventeen more were wounded, making it one of the world's deadliest school massacres . The perpetrator, 19 - year - old Nikolas Cruz, was identified by witnesses and arrested shortly afterward . He confessed, according to the Broward County Sheriff's Office . He was charged with 17 counts of premeditated murder and 17 counts of attempted murder . Police and prosecutors have not yet offered a motive and are investigating "a pattern of disciplinary issues and unnerving behavior". </P> <P> The sheriff's office received a number of tips in 2016 and 2017 about Cruz's threats to carry out a school shooting . The Federal Bureau of Investigation learned that a YouTube user with the username "nikolas cruz" posted a message in September 2017 about becoming a school shooter, but could not identify the user . In January 2018, a direct complaint of a death threat by Cruz was not forwarded to the local FBI office by the FBI tip line . </P>

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