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An 18-year-old intern in Western Cape Premier Helen Zille's office and his girlfriend have been shot dead.
Jarryd Manuel and his girlfriend, 19-year-old Megan Hendricks were shot outside his mother's home in Delft on Sunday evening.
Police say a 19-year-old man had been taken in for questioning.
Manuel was a PAY Project intern in the Centre for e-Innovation at the premier's department.
Zille said it was a tragic and senseless death that highlights just how serious the crisis of gang violence is in Cape Town.
Delft community policing forum chairman Reggie Maart says there's been a recent "scourge" of shootings in the area, with at least five dead and another two wounded since last Monday.