In Le Mars murder trial, wife testifies she watcher her husband, Tom Knapp, shoot her son
![](https://bloximages.chicago2.vip.townnews.com/thetandd.com/content/tncms/assets/v3/editorial/3/d9/3d93d9d2-b78b-5643-a239-93e85f18aeea/631ba2b840688.image.jpg?crop=1392,731,0,379&resize=1200,630&order=crop,resize)
4 min read
NICK HYTREK LE MARS, Iowa — Darlene Knapp knew her husband was mad when he returned inside their home. Tom Knapp had noticed...