Man gets 51 years in beating deaths of mother and son in Otter Tail County Otter Tail County Attorney Michelle Eldien described the killings as cruel and torturous. She recommended the consecutive sentences of 306 months each, noting two lives were taken. 5:49 pm, Jan. 26, 2021 × William Hillman, 24, apologizes Tuesday, Jan. 26, from Otter Tail County jail for the 2018 deaths of 42-year-old Denise McFadzen and her son, 21-year-old Dalton, at their mobile home in Frazee, Minn. He was sentenced to 51 years in prison for beating them to death with a pipe wrench. The Forum/ April Baumgarten William Lynn Hillman looked down silently Tuesday, Jan. 26, from the Otter Tail County jail as Judge Kevin Miller handed down two consecutive sentences of 306 months, one each for the 2018 deaths of 42-year-old Denise McFadzen and her son, 21-year-old Dalton McFadzen, at their mobile home in Frazee, Minn. Hillman was found guilty in November of two counts of second-degree murder.