ABC News November 5, 2018

'I chose to show him empathy': Jewish nurse who treated synagogue shooting suspect

WATCH: Oldest Pittsburgh synagogue massacre victim to be laid to rest

A Jewish nurse who treated the suspected Pittsburgh synagogue shooter in the hospital says he "chose to show him empathy."

"I wanted him to feel compassion," nurse Ari Mahler wrote in a Facebook post Saturday. "I felt that the best way to honor his victims was for a Jew to prove him wrong."

Robert Bowers, the man accused of killing 11 Jews in an anti-Semitic rampage, was shot as he exchanged gunfire with police at the Tree of Life Synagogue on Oct. 27.

Alexandra Wimley/Pittsburgh Post-Gazette via AP
From left, Kate Rothstein looks on as Tammy Hepps hugs Simone Rothstein, after multiple people were shot at The Tree of Life Congregation synagogue, Oct, 27, 2018, in Pittsburgh.
(MORE: Pittsburgh synagogue massacre: Oldest victim, Rose Mallinger, 97, laid to rest)

Bowers was taken to Allegheny General Hospital where he was treated by Mahler, the son of a rabbi. Mahler said less than an hour before Bowers arrived at the hospital, he had been terrified that his parents were among the victims.

"I’m sure he had no idea I was Jewish," Mahler wrote of Bowers. "Why thank a Jewish nurse, when 15 minutes beforehand, you’d shoot me in the head with no remorse? I didn’t say a word to him about my religion. I chose not to say anything to him the entire time."

Brendan Smialowski/AFP/Getty Images
Police tape is viewed around the area, Oct. 28, 2018, outside the Tree of Life Synagogue after a fatal shooting in Pittsburgh, Oct. 27, 2018.
(MORE: Pittsburgh synagogue shooting: Portraits of the 11 victims)

Mahler, who said he often experienced anti-Semitism as a child, wrote that as "anyone's nurse, my care is given through kindness, my actions are measured with empathy, and regardless of the person you may be when you're not in my care, each breath you take is more beautiful than the last when you're lying on my stretcher."

Mahler said love was the reason behind his actions.

"Love in the face of evil gives others hope," he said. "It demonstrates humanity. It reaffirms why we’re all here."

Brendan Smialowski/AFP/Getty Images
A memorial is seen on Oct. 28, 2018, down the road from the Tree of Life synagogue after a shooting there left 11 people dead in Pittsburgh, Oct. 27, 2018.
Andrew Caballero-Reynolds/AFP/Getty Images
Members and supporters of the Jewish community come together in front of the White House for a candlelight vigil, in remembrance of those who died earlier in the day during a shooting at the Tree of Life Synagogue in Pittsburgh, Oct. 27, 2018.

An Allegheny Health Network representative declined to comment but confirmed the authenticity of the Facebook post.

(MORE: Why Jewish hospital president checked on injured synagogue shooting suspect)

Minutes before the shooting, Bowers is believed to have posted his intent to commit the massacre on the social media platform Gab, which is popular with white supremacists and the alt-right, investigators said.

Butler Co. Prison
Robert Bowers is pictured in a booking photo released by the Butler County Prison on Oct. 30, 2018.

Prosecutors say Bowers -- carrying an assault-style rifle and three handguns -- "made statements regarding genocide and his desire to kill Jewish people" during the 20-minute attack.

(MORE: The lonely lone shooter: The Pittsburgh synagogue suspect's apparently isolated life)

Bowers, 46, has since been released from the hospital and is being held at the Butler County Prison.

He was charged Wednesday in a 44-count indictment that includes federal hate crimes.

The charges include 11 counts of obstruction of free exercise of religious beliefs resulting in death and 11 counts of use and discharge of a firearm to commit murder during and in relation to a crime of violence.

He entered a not guilty plea Thursday.