Raymond Wychowanec, 63, of Glendora shot his wife, Denise, 62, during a morning visit at Kennedy University Hospital-Stratford, police said. He then used the gun on himself.
Police did not identify the man found dead at the couple's house.
A neighbor said Denise Wychowanec had suffered for years from severe neck and back problems.
"He adored Denise," Laura McCafferty told the Inquirer. "He never acted like she was a burden."
Wychowanec had recently lost his job when an Atlantic City casino closed.
Gordon Bassing, a patient at Kennedy who was waiting to be discharged, said he heard muffled "pop-pop" noises.
"People were just flying all over the place," he said.
Wychowanec was taken by helicopter to Cooper Medical Center in Camden.