Mateen Sherwani, aged 1 year and 9 months, was shot and killed by her father, Farman Sherwani, on August 28, 2023, in Allen, Texas, in a murder-suicide. The father used a handgun to kill Mateen, her 11-year-old sibling (Shaheen), their mother (Layla Sherwani), and then himself. The family had been staying at the maternal grandmother's home following the accidental drowning death of their 4-year-old daughter, Lyian, approximately three weeks earlier. At the time of the murder-suicide, Mateen was the subject of an open Child Protective Investigations case initiated on August 1, 2023, related to the sibling's drowning. Allen police stated the prior drowning was a factor in the murder-suicide. The maternal grandmother discovered she was locked out of the home and called law enforcement, who found the four bodies upon entry.
Contexts/Conditions
Is there any mention of child drug ingestion or overdose?
Is there any mention of a drowning incident (either intentional or accidental)?
The DFPS summary describes the 4-year-old sibling drowning in a swimming pool in detail: "The 4-year-old sibling was found at the bottom of the pool and was under for about 3 minutes." The Medical Examiner confirmed "The 4-year-old sibling died due to drowning." While this drowning pertains to the sibling rather than Mateen directly, it is integral to the same case and investigation.
Is there any mention of a firearm incident?
The DFPS summary states "the father used a handgun to shoot and kill the deceased child, the 11-year-old sibling, the mother, and himself." The Medical Examiner determined "the deceased child and the 11-year-old sibling died as a result of gunshot wounds from a handgun." The alleged cause of death is listed as "SHOT."
Is there any mention of inappropriate supervision (e.g., child wandered off and drowned)?
The FY2023 fatality report states the investigation was "alleging neglectful supervision when Mateen's sibling drowned at a family member's home." The DFPS summary describes in detail how the 4-year-old sibling "left the home without anyone's knowledge and gained access to the pool," was "found at the bottom of the pool," and the exit door that "was locked most of the time" may not have been locked when the child exited. This closely matches the example given in the question of a child wandering off and drowning.
Is there any mention of inflicted injury? (e.g. slapped, punched, kicked, choked)
The fatality report states "the father used a handgun to shoot and kill the deceased child, the 11-year-old sibling, the mother, and himself." The child was shot, which constitutes an inflicted injury. The FY2023 fatality report (Document 3) also states "Mateen and her sibling died on August 28, 2023 from gunshot wounds."
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?
The DFPS summary states "Law enforcement believes the father murdered the mother and children and then killed himself." The news article reports "Allen police found four people dead Monday morning in what investigators say was an apparent murder-suicide."
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?
The DFPS summary states "Law enforcement believes the father murdered the mother and children and then killed himself" and "the father used a handgun to shoot and kill the deceased child, the 11-year-old sibling, the mother, and himself." The father (Farman Sherwani, identified in the news article) was the biological father of Mateen.
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)?
The FY2023 fatality report states "Mateen was involved in an open Child Protective Investigations (CPI) case at the time of the fatality. The investigation was initiated on August 1, 2023, alleging neglectful supervision when Mateen's sibling drowned at a family member's home." This investigation was opened approximately 27 days before Mateen's death on August 28, 2023, establishing a prior CPS report history.
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)?
The DFPS summary describes the drowning death of the 4-year-old sibling prior to the murder-suicide. The news article states "the family's 4-year-old daughter, Lyian, died three weeks ago after drowning in a pool." The Medical Examiner confirmed "The 4-year-old sibling died due to drowning." This was a separate incident occurring approximately three weeks before Mateen's death by shooting.
Parent/Caregiver Factors
Was an adult charged or arrested for the child's death?
Is domestic violence by the parent/caregiver referenced?
The DFPS summary states "the father used a handgun to shoot and kill the deceased child, the 11-year-old sibling, the mother, and himself." The father murdered his wife and children before killing himself, which constitutes an extreme act of domestic/family violence.
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
Several notable details emerge from these documents. First, the FY2023 fatality report (Document 3) states that "Mateen was involved in an open Child Protective Investigations (CPI) case at the time of the fatality," initiated on August 1, 2023, meaning the child was already known to the child welfare system when killed. Second, the DFPS summary notes that "The family was opposed to autopsies for religious reasons therefore, autopsies were not performed," which is notable from a forensic and evidentiary perspective. Third, the news article notes that police Sgt. Maness "said the drowning was a factor in Monday's slayings," linking the prior sibling drowning directly to the murder-suicide. Additionally, the Imam at the Islamic Association of Allen noted "the community has experienced a similar incident two years before, when six people were found dead in an Allen home," indicating a pattern of familicide in this community.
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