During this time, Richetti was represented by Attorney Hugo Chestosky who fought against Richetti's extradition to Missouri. Chestosky doubted Richetti's role in the Kansas City Massacre based on his belief that the suspect had no involvement in the death of the officers. His trial began on June 13, 1935, during which time a number of eyewitnesses identified him and Floyd despite these witnesses having previously identified other suspects or had been unable to identify anyone at the time of the shooting two years earlier. Three days later, Richetti was found guilty of the murder of police officer Frank Hermanson and sentenced to death. His legal team appealed the court's decision but ultimately failed to get a new trial. Richetti was originally to be sent to the gallows but was instead executed in Missouri's newly constructed gas chamber on October 7, 1938.