Crime Alert, I'm Nancy Grace.

Breaking in crime news now, Sergio Colin Gomez

accuses his pregnant girlfriend of cheating.

After she puts her three-year-old son Ivan to bed,

they talk things through and settle in for a movie.

An hour later, Colin Gomez starts accusing again.

Afraid, mommy locks herself in the three-year-old son's bedroom.

Colin Gomez breaks down the door, entering the room with a gun.

When she tries to take the gun away, he shoots little Ivan in the head.

Nancy, Ivan's mother immediately called 911, but there was nothing first responders could do for

the little boy.

California cops found Colin Gomez pacing on a sidewalk outside the apartment complex, and while

he resisted arrest officers were

able to subdue and cuff him. Santa Clara County District Attorney Jeff

Rosen said in a statement quote we will sadly but steadfastly do our job to make sure this person will never harm another.

Sergio Colin Gomez, 24, charged with murder.

An Albuquerque chemistry teacher tells the principal she's bringing swords to school to

discuss the properties of metal but everything goes wrong. The teacher

allegedly encourages students to fight in pairs with the samurai swords until a 16 year old

is badly cut. Instead of calling for help, she asked students to delete videos of the swords.

Eventually a student runs for help and the school nurse

calls 911. The victim undergoes multiple surgeries but will never regain full use of her

...