Edwin Daugherty (pictured), 34, was arrested on Thursday on two counts of attempted murder for allegedly stabbing his parents

A Florida man repeatedly stabbed his elderly parents during a Thanksgiving Day argument that became physical, police said.

Edwin Daugherty, 34, was arrested on Thursday on two counts of attempted murder, according to News 6.

Authorities said they found Daugherty walking down the street when they responded to a 911 call in Port Orange.

It's unknown what prompted the argument but deputies told the station they believe Daugherty became irate with his mother, Patsy Daugherty, 72.

Her son then placed her in a headlock.

As his 76-year-old father, Thomas Daugherty, tried to intervene, Edwin Daugherty placed him in a headlock before pushing him to the ground.

He then preceded to stab his father multiple times in the chest with a steak knife that had a 4-inch blade, News 6 reported.

Patsy Daugherty was stabbed after she attempted to help her husband, deputies said.

As his 76-year-old father, Thomas Daugherty, tried to intervene, Edwin Daugherty (center) placed him in a headlock before pushing him to the ground. He then preceded to stab his father multiple times in the chest with a steak knife that had a 4-inch blade

Witnesses told the Sheriff's Office that they saw Edwin Daugherty stab his parents before leaving the home (pictured)

His parents were taken to Halifax Health Medical Center, where Thomas Daugherty was listed in serious-to-critical condition, News 6 reported.

Patsy Daugherty was listed in serious condition.

Witnesses told the Sheriff's Office that they saw Edwin Daugherty stab his parents before leaving the home.

Deputies found a knife in some bushes about a block from the house.

Edwin Daugherty was arrested and taken to the Volusia County Branch Jail.

On Friday, a judge ruled that he would remain in jail without bail.