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| This photo provided by the Carson City Sheriff 's Departmentshows William Dresser. Dresser was arrested Sunday Jan. 19, 2014, after firing one shot with small-caliber semi-automatic handgun that struck his wife in the chest at Carson Tahoe Regional Medical Center in Carson City. Dresser was placed on suicide watch at a local jail. | 
CARSON CITY, Nev.
     (AP) -- An 86-year-old Nevada woman shot by her husband while 
hospitalized died Wednesday and her spouse of more than six decades was 
charged with murder, authorities said.
 
Frances
 Dresser of Douglas County died from injuries suffered when she was shot
 once in the chest Sunday while at Carson-Tahoe Regional Medical Center,
 Carson City Sheriff Ken Furlong said.
 
Her 
husband told officers he planned to "end his wife's suffering" by 
killing her and then himself, but his gun jammed, police said.
 
District Attorney Neil Rombardo said William Dresser, 88, was charged Wednesday with "open murder" with use of a deadly weapon.
 
Rombardo
 said open murder gives him discretion to amend the charges as more 
facts about the case emerge. Nevada law does not recognize or make a 
distinction for so-called mercy killings, he said.
 
"Filing
 open murder allows us to achieve justice for the victim, for the family
 and the community, which is our ultimate goal," Rombardo said. "My 
heart goes out to the family."
 
Furlong described Dresser as emotional but stable, adding he has some "significant" health problems and is on suicide watch.
 
"I'm not sure he was aware that she was alive," Furlong said. "He intended to end her suffering, and he caused more."
 
William Dresser was arrested Sunday after firing one shot at his wife with a small-caliber handgun.
 
The
 shooting happened on the third floor in the hospital's rehabilitation 
ward, where Frances Dresser was being treated for a previous injury.
 
"Dresser suggested to officers that his motive was to end his wife's suffering," Furlong said.
 
According
 to a police report, William Dresser told officers he had brought four 
bullets - two for his wife, two for himself - but the gun jammed after 
the first shot.
 
State Department of Corrections officers who were nearby and hospital security subdued William Dresser until deputies arrived.
 
The man was "crying and mumbled words to the effect of, `I did not accomplish my goal,'" an officer wrote.
 
After the shooting, Frances Dresser was flown to Renown Regional Medical Center in Reno, where she died three days later.
 
Authorities
 were investigating William Dresser's claims that his wife became 
paralyzed and incapacitated after a fall at the couple's home two weeks 
ago. The couple had been married 63 years.
 
William
 Dresser was scheduled for an initial court appearance Thursday. It 
wasn't immediately known if he had retained or been appointed a lawyer.