TULSA, Okla. (AP) — A 21-year-old Tulsa woman accused of shoving her husband through the window of their 25th-floor apartment in downtown Tulsa told jurors Friday that she pushed him — but she did so in self-defense.

Amber Hilberling testified in her own defense. She has been charged with killing her husband, Joshua Hilberling, 23, who fell from the apartment onto the top of a parking garage in 2011. Her attorneys called the death a “tragic accident,” but prosecutors say Amber Hilberling was angry because her husband was leaving her.

Amber Hilberling told jurors that she was seven months pregnant at the time and feared for her safety.

“We started arguing. I don’t remember exactly what was said,” she testified. “We were getting closer to each other. Josh was really frustrated and grabbed my shoulders, and I pushed him off me.

“I remember watching him go through the glass,” she sobbed.

A defense witness testified earlier Friday that he found the windows in the apartment to be “unusually thin” and not well-maintained.

The expert, Mark Meshulam, testified that the glass installed in the nearly 50-year-old apartment complex is classified in the industry as “single strength” and would be more suited for small windows and picture frames. Meshulam said in his 30-plus years of experience, he had never seen that type of glass used in high-rise buildings.

Prosecutors contend Amber Hilberling intentionally shoved her husband to his death and on Thursday called police detectives who testified they saw no signs of a struggle in the couple’s apartment.

Prosecutors also introduced a pair of crime scene photos showing a green canvas duffel bag packed and standing in the living room and a picture of the couples’ closet. Half of the clothes were gone, and the items that were left appeared to be blouses and other women’s clothing.

A detective testified Thursday that the luggage in the living room contained men’s clothes, some of Joshua Hilberling’s documents, a DVD player and some DVDs.

Prosecutors rested their case late Thursday.

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