People Magazine - https://people.com/crime/brittany-zimmermann-killing-

suspect-arrested/

La Crosse Tribune -

https://lacrossetribune.com/news/state-and-regional/brittany-zimmermann-

homicide-read-the-original-reports/collection_e2f17c52-3b5f-5549-a00c-

c9cba9a44df2.html#2

Heavy.com - https://heavy.com/news/2020/03/david-kahl/

Wisconsin State Journal - https://madison.com/wsj/news/local/crime-and-

courts/competency-exam-ordered-for-man-charged-in-brittany-

zimmermann-homicide/article_d936104b-8d6c-5c18-9804-

a674cc6ee47c.html