Mount Hope Cemetery

Mount Hope Cemetery (flickr/commons)

SAN DIEGO (KTLA) -- Police arrested a San Diego man on Saturday after he said "voices in his head" told him to sacrifice his 8-year-old son.

Joseph Ramirez, 30, was arrested in San Diego's Mount Hope Cemetery on suspicion of child abuse and assault with a deadly weapon, the Los Angeles Times reported.

The man said his dead grandmother told him to bring his family to the cemetery and to sacrifice his son there, the newspaper said.

According to police, Ramirez took a piece of broken glass and slashed the boy's forearms.

He then turned the knife on himself, cutting open both his forearms, police say.

A young couple at the cemetery, Jaymisha Pires and Corey Granberry, both 21, heard screams and rushed over to help.

"My motherly instincts kicked in when I saw him hurting that little boy," Pires, who has children, 2 and 6 years old, told The San Diego Union- Tribune.

"It was a blur. I just wanted him to stop."

When Pires confronted Ramirez, he kept saying, "We're going to Jesus,'' she told the newspaper.

Eventually, Ramirez pushed the boy aside and ran -- only to be tackled by cemetery security guard Dana Fontenot.

Granberry wrapped up the boy's slashed arm with a T-shirt and tried to comfort Ramirez's other two children, one of them a toddler.

The boy with cut arms was taken to Rady's Children's Hospital to be treated.

Ramirez was taken to a hospital to be treated and remains behind bars.