The Sisseton Wahpeton
Oyate of South Dakota has increased the reward in connection with a tribal member who went missing more than three months ago.
The tribe is offering $10,000 for information about Andrew Lufkins, also known as AJ. He was last seen in Sisseton on April 7.
"Not a day goes by I don't think about him," his grandfather Carl Lufkins told KSFY-TV.
The tribe and the FBI are investigating the case. But AJ's mother said she hasn't received a status update in the last few weeks.
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