The man accused of killing several family members execution style collapsed in a Houston courtroom Friday. Ronald Lee Haskell had to be wheeled out of his arraignment hearing.

HOUSTON -- Multiple capital murder suspect Ron Haskell collapsed during a hearing Friday morning as his probable cause was read in a Houston courtroom.

Haskell was taken out of the courtroom in a wheel chair.

He's accused of fatally shooting six of his ex-wife's family members in their Spring home earlier this week.

Deputy constables say Ronald Lee Haskell, 33, has been charged with one count of capital murder (multi) in connection with the shooting of seven people, including children, at a home in Spring, Texas. VPC

In court, prosecutors said Haskell's actions were planned and calculated murders. They are seeking a grand jury capital murder indictment.

Watch: Suspect faints in Houston courtroom

But Haskell's court-appointed attorney said his client has a mental illness and wasn't fully aware of what he did.

Prosecutors alleged that Haskell fainted in court because it finally hit him that "this is real and there are real consequences."

Investigators said Haskell shot two adults and their five children execution style on Wednesday evening. One of the kids, a 15-year-old girl, survived the shootings.

The oldest daughter of the family that was shot execution-style in Spring, Texas, played dead and was the only survivor of the shooting. VPC

A brief chase ensued and ended in a cul-de-sac in a quiet Spring neighborhood approximately three miles away from the crime scene.

Neighbors said Haskell was stone faced and not responding to repeated commands from authorities to surrender.

Haskell was boxed in by a SWAT team for hours before finally giving up. During most of the standoff, Haskell was described as "just sitting in his car."

Investigators believe Haskell was on his way to kill more of his ex's family before he was stopped.

The suspect in a mass shooting that left six people dead, including four children, and one injured tied up his victims and shot each one in the head, prosecutors said Thursday. VPC

Estranged Husband Charged in Multiple Shooting Deaths

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