VISTA, Calif. -- Jurors cried and consoled each other Wednesday when shown a video of a 2-year-old boy pointing out numerous welts and bruises on his body eight days before being beaten to death, allegedly by his mother's boyfriend.

The video was made by 24-year-old Jose Maurice Castenada, who could face the death penalty if convicted of first-degree murder and a special circumstance allegation of torture in the June 25, 2005, death of Cesar Razo.

When the toddler died, he had 304 injuries on his 34-inch-long body that included bruises from head to toe, lacerations to his liver and penis, and pattern loop marks from the yellow cord the defendant allegedly used to torture him, prosecutor Keith Watanabe said outside court.

"In the video, the child is standing nude and emaciated," Watanabe said. "He looked liked a war crimes survivor."

Defense attorney Allen Bloom -- who alleged the child's real killer was his mother, Maria Razo -- showed the jury the gruesome video during his opening statement.

Watanabe said the prosecution plans to show the entire eight-minute video toward the end of its case, which is expected to last three weeks.

Maria Razo pleaded guilty two years ago to voluntary manslaughter and child abuse and is expected to testify against Castenada next week, Watanabe said.

Her mother, Matilde Razo Gil, testified today that she did not like Castenada when she first met him, and that her daughter began distancing herself from her family after she moved in with the defendant.

Gil testified that during the victim's 2nd birthday party, she saw a cut behind her grandson's right ear and was told by her daughter that he got it accidentally during a haircut.

The witness also testified that she once saw a bruise on her daughter.

When co-prosecutor Lucy Weismantel showed Gil a picture of her naked and beaten grandson, the witness began weeping.

Prosecutors are expected Thursday to call doctors and other health professionals to testify that both Cesar Razo and his then-5-year-old sister were in good health and showed no signs of abuse before their mother moved in with Castenada.

After that, Maria Razo stopped taking the children to the doctor, prosecutors said.

The victim's sister, now almost 9 years old, is expected to testify next week about what she saw in the room when her brother was fatally beaten, prosecutors said.

The girl testified at a hearing more than three years ago that Castenada and her mother used hangars, cable wire and belts to beat her and her brother.

Prosecutors said they will present evidence showing that Castenada tortured the 23-pound victim for up to 10 months before his death and that the toddler was forced to live in a small, dark closet.

The child died 15 minutes after the couple rushed him to Palomar Medical Center.

If Castenada is convicted, jurors will be asked to recommend the death penalty or life in prison without parole.