MINNEAPOLIS (WCCO) — The family of two brothers who died in a crash near Fergus Falls is now offering a reward for information in the case.

Eighteen-year-old Zachary Kvalvog and his 14-year-old brother, Connor, were killed when their pick-up rolled on the way to a basketball tournament on June 23, 2015. Two other boys were badly hurt.

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Now, billboards are going up along Interstate 94 offering a $10,000 reward for the semi-truck believed to be involved in the accident.

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The boy’s parents say they just want to know the truth about what happened.

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The Minnesota State Patrol is still investigating this case.