Monalisa Perez, 19, was attempting to make a viral video with boyfriend Pedro Ruiz III, 22, by firing a gun into his chest from about a foot away while he held up a book (which he thought would stop the bullet). It did not stop the bullet, and paramedics on the scene said Ruiz died from a single gunshot wound to the chest.

Me and Pedro are probably going to shoot one of the most dangerous videos ever😳😳 HIS idea not MINE🙈

— Monalisa Perez (@MonalisaPerez5) June 26, 2017

Via CNN:

Perez, who is seven months pregnant, called 911 on Monday evening, saying she had accidentally shot her boyfriend in the chest while they were making a video, according to the arrest report.

“They were in love. They loved each other. It was just a prank gone wrong,” Ruiz’s aunt, Claudia Ruiz, told CNN affiliate KVLY. “It shouldn’t have happened like this. It shouldn’t have happened at all.” The couple had one child and were expecting their second together, his aunt told the news station.

Perez told police that her boyfriend wanted to make a YouTube video of her shooting a book and had been talking about it for awhile. He held the book up to his chest and convinced Perez to shoot at him, believing the book would stop the bullet.

Perez told police that Pedro convinced her it was a safe stunt by showing her a different book he had previously shot where the bullet did not go all the way through, according to the arrest report. He set up two cameras to film the whole thing, hoping a video of the dangerous stunt would go viral.

Perez faces up to 10 years in jail and a fine of up to $20,000 if she is convicted of the manslaughter charge against her. She has been released on bail, and as a condition of her release she cannot possess firearms, needs to notify her attorney of her whereabouts and has to wear a GPS monitor, according to court documents. She will be back in court on July 5.