Stanley Brown of Lansdale called borough police just after noon and told them he had shot his wife, Florence Brown, said District Attorney Kevin Steele's Office.
He told dispatchers he was going to kill himself before a gunshot was heard, authorities said.
As police arrived, another shot was heard from inside the home, according to the DA's Office.
Inside, officers found Stanley sitting in a chair with multiple gunshot wounds to the chest and a firearm in his hand, officials said. Florence was also found unresponsive with multiple gunshot wounds, they added.
She was rushed to Grand View Hospital and pronounced dead around 1:15 p.m., the DA's Office said. Her husband underwent emergency surgery at Jefferson Hospital in Philadelphia but died from his wounds around 11:15 p.m.
Investigators said Florence was suffering from dementia and that Stanley was her caretaker.
Their official causes of death are pending autopsy results, the DA added.
This is the second murder-suicide in Pennsylvania on Tuesday, Sept. 12. The second happened in York County, and left a township employee dead, you can read about it here.
If you or a loved one are struggling with thoughts of self-harm, help is available 24/7 by calling the Suicide and Crisis Lifeline toll-free at 988, or by visiting 988lifeline.org.
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