The official Iowa DPS statement makes no reference to stabbing/stab wounds, only “sharp force injuries:”
August 4, 2022 ANKENY, Iowa – On July 22, the Jackson County Sheriff's Office, the Department of Natural Resources, and the Division of Criminal Investigatio
dps.iowa.gov
“Tyler Schmidt, age 42, died from a gunshot wound and multiple sharp force injuries. Sarah Schmidt, age 42, died from multiple sharp force injuries. Lula Schmidt, age 6, died from a gunshot wound and strangulation. All three family members’ deaths have been ruled homicides.
Anthony Sherwin, age 23, of LaVista, Nebraska, died from a self-inflicted gunshot wound. His death has been ruled a suicide.
The investigation into the events surrounding the homicides is ongoing. However, the known facts and circumstances, and all evidence collected to this point, substantiate Sherwin was the perpetrator of the homicides and acted alone.”