ADA, Minnesota -- A woman pleaded guilty to second-degree manslaughter after she accidentally shot and killed her boyfriend in a botched YouTube stunt.

Monalisa Perez, 20, entered the guilty plea last week in connection with the June 26 death of Pedro Ruiz III, 22, according to ABC News. Ruiz was her boyfriend and the father of her two children.

Ruiz held a hardcover dictionary against his chest and Ruiz then fired a shot from a .50-caliber Desert Eagle pistol from about a foot away, Fox News reports. Two cameras were set up to record the stunt for the couple's YouTube channel. Ruiz reportedly believed the book would stop the bullet.

Perez called 911 but Ruiz was pronounced dead at the scene.

ABC News reports Perez tweeted hours before the stun: "Me and Pedro are probably going to shoot one of the most dangerous videos ever. HIS idea not MINE."

Authorities have not released the video.

According to twincities.com, Perez made a plea deal to serve 180 days in jail and will be placed on 10 years probation. A judge is expected to sentence her in February.

Court documents say she would be barred for life from owning a gun and cannot profit from the video.

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