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Borden attended Mason High through his junior year, district spokeswoman Tracey Carson said.
Mason Police Chief Todd Carter said Borden no longer lives in the city, but that while a resident police had seven contacts with Borden. One was for allegedly making statements about a shooting at the high school and telling some classmates not to go to school that day, according to police reports about the incident, WCPO reported.
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Detectives are continuing the investigation into the vehicle attack that led to one death and injuries, some severe, to 35 people, police said.
Attack suspect James Alex Fields Jr., whose most recent address was in northwestern Ohio, is charged with second-degree murder, five counts of malicious wounding, three counts of aggravated malicious wounding and one count of felony hit and run.
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