Corning entered the couple's home, using a cane to walk instead of his crutches. He entered the couple's bedroom and began striking Jennie Shirlander with the cane. Frank Shirlander woke up when he heard the attack. Frank tried to stop Corning, but Corning shot him three times (in the shoulder, chest, and cheek). Corning then used the gun to commit suicide.
Frank was taken to Provident Hospital. Jennie stayed with her brother, Fred Hart, who lived nearby.
The incident was reported in the 29 May 1905 issue of the Chicago Tribune.
Chicago Tribune, 29 May 1905, page 8
The incident also received coverage in out-of state newspapers, such as the Cortland Standard, a Central New York newspaper.
Cortland Standard, 29 May 1905, page 1
Although this report states that the Shirlanders had taken care of John Corning from babyhood, I could not find any evidence to support this claim. The Chicago Tribune article stated that Corning had worked for the Shirlanders for four years. In 1900, the Shirlanders' household did not include John Corning. Based on his age and profession, I think that the John Corning who attacked the Shirlanders was living with his brother and sister in 1900.