On June 23, 1923, 35-year-old William Zinsmeister would question his son-in-law. He would inquire where his daughter, 15-year-old Mamie, was attending a picnic for the St. Williams Catholic Church in Louisville, Kentucky. He would then ask who she was attending with and if it was the boy he disapproved of. He would then call a taxi to come get him at his soft drink stand at 1:30 p.m.
Before leaving he would tell his son-in-law that he "I'm going to kill 5 kids this afternoon". His son-in-law would try to make it to the river before him. He left in the taxi with two revolvers and over 75 rounds. The taxi would bring him to the picnic area of the Ohio River. There was nothing unusual about how William was acting in the taxi.
When they arrived William would leave the vehicle and walk towards the river. The Taxi driver would stay and chat with someone. He would then walk down to his daughter who was sitting on a log next to the water. 18-year-old Thomas Mullaney and 16-year-old Sarah Connolly were in the water near her.
William would be greeted by Mamie saying "Hello Daddy." He would then ask his daughter "What are you doing out her Mamie?". She responded with something along the line of to have a good time and her father's response was "Well I'm going to kill you." He then pulled out and began shooting.
Mammie died almost instantly with two shots to the head. He then began shooting at those in the water. 16-year-old Sarah Connolly would be shot and killed. 16-year-old Gertrude Franconia, and 18-year-old Charles Eifler would be injured. Thomas would be able to get one of the revolvers from William and received a wound to the shoulder and was hit on the head.
Those witnessing the madness would run screaming towards where the Taxi was parked. "He's shooting people in the water." After the shooting William would flee across fields on foot towards his childhood home and where he was born. He was a few hundred feet from his former home and would kill himself.
There were only two deaths, Mamie and Sarah. Sarah's body was washed away and a search would be done for it. She wouldn't be found for two days. Her body would be found down stream about a mile from the scene. The rest were injured with non life threatening wounds.
SOURCES:
The Puducah Sun-Democrat June 25, 1923
Messenger-Inquirer June 25, 1923
The Courier-Journal June 25, 1923
Hinton Daily News June 25, 1923