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UPDATE: Man fatally stabbed partner over pills after she allegedly hit him with hammer, police say

Posted at 11:45 PM, Mar 16, 2018
and last updated 2018-03-19 19:10:03-04

UPDATE ON MARCH 19: Police said the man suspected of killing his partner attempted to end his life by taking 80 pills. 

According to John Vannucci's arrest report, he told medical personnel that he got into an argument with his female partner about her taking his pills and then he stabbed her. He said she took 120 Vortab pills he used for his shoulder and back from a stroke. 

Vannucci told police that she threatened to take his social security because she wanted more pills. Vannucci said she even hit him in the knees with a hammer over the pills. 

He told police he eventually got tired of her talking down to him and complaining. He told police, "I lost my mind -- she was evil." 

Vannucci told police he stabbed her six times in the neck and back. He started with one knife before moving onto a second when the first one was dull. Two knives were later found in a trash can. 

Despite being stabbed, he said she continued to kick and swing at him with a fist before he punched her. 

After the incident, Vannucci told police he took a lot of his pills because "he wanted to die too because had hurt somebody." He told police, "I'm sorry I had to go insane over pills." 

UPDATE ON MARCH 17:  Police say a man fatally stabbed his partner inside a home. The victim is a woman believed to be in her 60s. Right now, the suspect is in custody. 

INTERACTIVE MAP: Murders investigated in the Las Vegas valley in 2018

According to detectives, this all started as a welfare check call Friday evening. Detectives found the garage door open. They entered the unlocked residence to check on the occupants.  

Once inside, they discovered the body of the victim in the dining room area of the home. The suspect, 62-year-old John Vannucci, was found inside a bedroom. He had attempted to end his life by taking various pills.

Police believe the woman had been dead for several days. However, the investigation continues. 

Vannucci is currently in the hospital. Police have charged him with Open Murder.

The coroner's office will release the identity of the victim once the family has been notified.


Las Vegas police are responding to a homicide in the 1900 block of Cameron Street, near South Decatur and West Oakey boulevards.

The call came in about 8:30 p.m. and homicide detectives are investigating the cause.