3rd inmate to die within two days at the South Dakota Penitentiary

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Sioux Falls, SD (KELO.com) — Three inmates died within in two days at the South Dakota Penitentiary. Officials say they’re aggressively investigating the most recent death of 25-year-old Kaleb Lukkes. 57-year-old Keith McLain died of an apparent suicide Monday. 64-year-old Frank Twiggs passed away while in comfort care Wednesday. Lukkes is the 15th inmate to die in South Dakota this year.