Annie Richardson dies after she and three others were stabbed in random attack by Louisiana Tech student Jacoby Johnson: Women were leaving morning exercise class

An artist has been killed and three other women were injured after they were stabbed in a random attack on a Louisiana college campus.

Annie Richardson was knifed as she left an exercise class at Louisiana Tech University on Monday and was in critical condition before she died on Tuesday evening, according to local television station KLAX-TV. 

Retired Lincoln Parish Judge Cynthia Woodard, Tech grad student Dominique McKane and retired teacher Debbie Hollimon were also stabbed. 

Louisiana Tech student Jacoby Johnson, 23, was arrested over the attacks and has been charged with second-degree murder and four counts of attempted second-degree murder.

Woodard and McKane are currently being treated at Shreveport hospital but Hollimon who sustained a cut on her face trying to protect McKane declined treatment. 

The random knife attack occurred outside the Lambright Sports & Wellness Center on the northern Louisiana campus.

One witness said married artist Richardson had her throat slashed and she was taken to hospital in critical condition. 

An update was issued by Louisiana Tech University on Tuesday which confirmed she had died. 

'My prayers are with Annie’s husband Peter, the entire Richardson family, and all who called Annie a friend,' university President Les Guice said.

'Our Tech family will feel the pain of this incident for some time, but we are fortunate to have such a caring community to rely upon as we grieve together.' 

Woodard and McKane were also stabbed in the attack along with Hollimon who recalled the terrifying incident. 

'I just ran up screaming, "Get off her! Get away from her!" she told KTBS.

'He stands up and looks at me with no expression — just as flat as can be.'

Hollimon added that the attacker cut her across the right side of her face with a short blade before walking away.

Freshman student Colin Campbell reacted quickly after hearing screams and placed Richardson and Woodard in his pickup truck before driving to a local hospital. 

He said Richardson had a wounded throat and collapsed in the back seat of his vehicle as he arrived at the hospital.

She was then airlifted to Shreveport hospital where she later died.