by the Associated Press:

A judge in Wyandotte County has dismissed all charges against officials of the Schlitterbahn Waterpark in Kansas City over a 2016 accident that killed a ten-year-old boy.

Judge Robert Burns found a number of abuses by the Kansas attorney general’s office in the grand jury process, and he said inadmissible evidence was presented to the grand jury.

The judge dismissed second-degree murder charges against Schlitterbahn owner Jeff Henry and designer John Schooley. The judge also dismissed an involuntary manslaughter charge against operations manager Tyler Miles.

State prosecutors didn’t immediately return phone and email messages. They alleged that shoddy planning and maintenance led to Caleb Schwab’s death on a special day for elected officials. Caleb’s father is Scott Schwab, a state lawmaker who’s now Kansas secretary of state.

A Schlitterbahn spokeswoman says the company welcomes the decision.