Prosecutors say Ruiz, simply did not want to be a father. They say countless statements support that. CBS 8 was also told more about how the baby died.

The Sheriff's Homicide Unit said the baby was found dead on his living room floor in the middle of the afternoon Wednesday.

The San Diego Sheriff reported a newborn's death as homicide in Spring Valley; the father was arrested for the murder.

A heartbreaking scene continues to unfold in Spring Valley after sheriff’s deputies arrested 22-year-old David Ruiz on suspicion of murdering his son.

Sheriff’s deputies arrested the father of a newborn baby Wednesday after being called to a Spring Valley home to investigate a report of a battery and finding the 6-day-old baby suffering

A 22-year-old man has been arrested for murder after his newborn son was found dead in a Spring Valley home Wednesday night, according to the San Diego County Sheriff's Office.