The parents of a Nebraska teen who died at the 2010 Country Stampede music festival in Manhattan have filed a lawsuit over his death.

The Manhattan Mercury reported that Kristina and Mark Kreutzer of Beaver Crossing, Neb., are seeking damages in excess of $75,000 on two counts.

The lawsuit was filed in late June against Country Stampede, the Kansas Department of Wildlife, Parks and Tourism; Robin Jennison, secretary of the state agency, and two employees of a company that provided security at the music festival.

The Kreutzers’ suit alleges the defendants did not provide timely aid to their son, 19-year-old Jacob D. Kreutzer, who died June 24, 2010, while camping at the event.

The Shawnee County coroner listed the cause of Kreutzer’s death as an unexplained internal injury.