Closing arguments begin in civil case over Santa Fe High School shooting against parents of Dimitrios Pagourtzis

GALVESTON COUNTY, Texas (KTRK) — Closing arguments in the civil trial over the Santa Fe High School shooting are scheduled to begin Friday.

The victims and their families had to endure weeks of exhaustive testimony.

Lawsuits have been filed against the parents of the confessed shooter, Dimitrios Pagourtzis. The victims' families claim that, as parents, Antonios Pagourtzis and Rose Maria Kosmetatos should have secured the family's weapons and also arranged for psychiatric treatment for their son.

On May 18, 2018, ten people – eight students and two teachers – were killed by firearms and 13 others injured in the school shooting.

Pagourtzis was 17 at the time of the shooting. The Galveston District Attorney's Office has declared him incompetent to stand trial and he remains in custody at North Texas State Hospital.

The final witness in the case on Thursday was the psychiatrist who questioned the confessed shooter. He told jurors that it became apparent during questioning that he was suffering from a psychotic illness.

PREVIOUS STORY: Psychiatrist paints disturbing picture of Santa Fe HS suspect's mental state

Dimitrios was diagnosed with schizoaffective disorder, Tourette syndrome, social anxiety disorder, psychosis, obsessive-compulsive disorder, probable transvestite disorder and anorexia, which was in remission.

Other witnesses who testified during the trial include Pagourtzis' father and his younger sister.

His father, Antonios, said he had no knowledge of his son's mental health problems, which lawyers argued were evident in poor grades, antisocial behavior and an obsession with weapons.

READ MORE: Sister of suspected Santa Fe High School shooter testifies about her upbringing as parents' lawyers present case

Antonios denied any responsibility for the shooting but said he wished he could have prevented what happened. He acknowledged that his son destroyed several lives on May 18, 2018.

When asked if he believed his son should be held accountable for his actions, he said he would leave that to a judge, but that he had destroyed his own life.

Pagourtzis' younger sister, Vasiliki Gerbsoti, now 20 years old, testified that neither of her parents abused her. She said that she and her brother had a normal upbringing.

She said she had not noticed any changes in Pagourtzis' behavior or personality before the shooting.

The jury will reconvene at 9 a.m. Friday to hear the indictment and closing arguments.

ABC13 will broadcast closing arguments live in the video player at the top of this page. Come back here for updates.

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