A nurse, who stole controlled substances from a life care center where she was employed, pled guilty today in federal court in Sioux City. Cassandra Lynne Vonnahme, age 32, from Arcadia, Iowa, entered a guilty plea to one count of acquiring a controlled substance by means of misrepresentation, fraud, deception, and subterfuge, and one count of false statements relating to healthcare matters. Vonnahme had been scheduled to begin a jury trial on December 11, 2023. At the plea hearing, Vonnahme admitted that between November 2020 and December 2020, she diverted controlled substances and falsified related documents. The controlled substances Vonnahme stole and the records she falsified pertained to actual patients. Vonnahme was later convicted of burglary in Carroll County in 2021, where she stole controlled substances from a stranger’s home.
