Osvaldo Rubio
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CANDID ID: CA_23_347
AGE
Infant
STATE
California
DATE OF DEATH
4/27/2023
DEATH RECORDS
Not Available
STATE REPORTS
Not Available
SUMMARY OF DEATH
Nine-month-old Osvaldo Rubio arrived at an Oakland hospital on April 25 with major injuries suspected to be related to child abuse. Stockton police and Child Protective Services were notified and responded to the hospital. The infant died two days later on April 27 from his injuries. Leonel Mateo, 31, of Stockton, was arrested and subsequently charged with murder, child abuse resulting in death, child abuse/endangerment, and firearm possession. The relationship between Mateo and the child was not disclosed by authorities, and the investigation remained ongoing at the time of reporting.
Contexts/Conditions

Is there any mention of child drug ingestion or overdose?

Is there any mention of a drowning incident (either intentional or accidental)?

Is there any mention of a firearm incident?

Is there any mention of inappropriate supervision (e.g., child wandered off and drowned)?

Is there any mention of inflicted injury? (e.g. slapped, punched, kicked, choked)

Both documents describe the child arriving at the hospital with "major injuries" that were "related to child abuse." The CBS News article states Mateo was charged with "murder, child abuse resulting in death, child abuse/endangerment." While no specific mechanism of inflicted injury is named (e.g., punched, kicked), the combination of major injuries attributed to child abuse and the resulting charges strongly implies inflicted physical injury.

Is there any mention of malnutrition, starvation, or dehydration?

Is there any mention of medical neglect?

Is there any mention of a motor vehicle crash or incident?

Is there any mention of a murder-suicide incident?

Is there any mention of outdoor elements (including hot car deaths)?

Is there any mention of prenatal substance exposure (including fetal alcohol syndrome or neonatal abstinence syndrome)?

Is there any mention of sexual abuse?

Is there any specific mention of shaken baby or abusive head trauma?

Is there any mention of prolonged abuse or torture (including restraints, captivity)?

Is there any mention of an unsafe sleeping environment?

Individuals Involved

Was an adoptive parent or guardian involved in the death?

Was a biological father involved in the death?

Was a biological mother involved in the death?

Was a day care worker, babysitter, or nanny involved in the death?

Was a female paramour or friend involved in the death (e.g., girlfriend, stepmother)?

Was a foster parent involved in the death?

Was a male paramour or friend involved in the death (e.g., boyfriend, stepfather)?

Was another adult relative involved in the death? (e.g., grandfather, aunt)

Was a sibling involved in the death?

Child Characteristics

Was the child adopted?

Was the child homeschooled (including "cyberschooling") or taken out of school?

Was the child in foster care at the time of the incident?

Was the child living with relatives at the time of the incident (but not parents)?

Is there any mention of a neurological developmental child disability? (e.g., autism, intellectual disability, nonverbal)

Is there any mention of a physical child disability? (e.g., feeding tube)

Is there any mention of prematurity or low birthweight?

Is there a history of child protection reports prior to death (for this child or siblings)?

Does the child have a history of foster care (but not in care at time of incident)?

Is there a history of a sibling death (separate incident from this death)?

Parent/Caregiver Factors

Was an adult charged or arrested for the child's death?

The KCRA article states "Leonel Mateo, 31, was arrested in connection with the child's death." The CBS News article further specifies that "Mateo was charged with murder, child abuse resulting in death, child abuse/endangerment as well as firearm possession, according to the San Joaquin County District Attorney's Office."

Is domestic violence by the parent/caregiver referenced?

Is there any mention that the death occurred in a temporary shelter or while homeless?

Is an intellectual disability of the parent/caregiver referenced?

Is the mental health of the parent/caregiver referenced?

Is a history of arrests or criminal charges for the parent/caregiver referenced?

Is substance use by the parent/caregiver referenced?

Notable Details

The CBS News article notes that Mateo was also charged with "firearm possession" alongside the murder and child abuse charges, suggesting a firearm was found during the investigation, though it does not appear to be directly related to the child's cause of death. Additionally, the article mentions that "Stockton police detectives and Child Protective Services responded to the hospital on April 25 after being notified that baby Rubio had arrived," and that "The relationship between Mateo and the child is not known" per the KCRA article, which is notable given the severity of the charges. A GoFundMe was also set up by a family member for funeral expenses.

Lives Cut Short