Dennis Magner facing three counts of involuntary manslaughter for last year's fatal boat crash

Dennis Magner facing three counts of...

COEUR D'ALENE, Idaho - Dennis Magner plead not guilty to three counts of involuntary manslaughter and one count of conspiracy to conceal evidence in Kootenai County court Friday.

In July of 2016, Magner was driving his boat near Threemile Point on Lake Coeur d'Alene when he slammed into another boat sending 21-year-olds Caitlin Breeze, Justin Honken, and 34-year-old Justin Luhr into the water.

Their bodies were recovered days later at the bottom of the lake. The families of the victims are also suing Magner, accusing him of being reckless and careless while operating his boat.

According to court documents released to kxly Friday, Magner told investigators at the scene that another man, Jonathan Sweat was driving the boat that night; Sweat and another passenger, Alejandro Gutierrez, told investigators the same.

Investigators have since determined that Magner was driving the boat and that Magner was under the influence of alcohol at the time. 

Sweat also faces conspiracy charges in the case; his trial is set for early next year.

Meantime, Magner has a pending DUI case in Spokane as well.