In a news conference Friday, the Frisco Police Department shed new light into the investigation into the deaths of Pallavi and Sumeet Dhawan.
The couple's bodies were found Wednesday after a family member requested a welfare check after being unable to reach both the husband and wife.
Officers arrived at the home and found 43-year-old Sumeet Dhawan in a downstairs bedroom, on the bed, with a blunt force trauma injury to his head, according to the medical examiner. The body of 39-year-old Pallavi Dhawan, police said, was recovered from the family pool with no identifiable trauma to her body.
Frisco Assistant Chief Darren Stevens said a note was found at the home, but that the contents of that note would not yet be disclosed. He added that the note was being assessed for information and authorship.
No guns were found in the home, but Stevens added that many items that are normal in a home could be used as a weapon.
Frisco police would reveal little else, saying it was early in the investigation and that they were trying to respect the privacy of the surviving Dhawan family.
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Stevens said it would be inappropriate to qualify the deaths as a murder-suicide and that they would reveal no further information without first disclosing that information to the family.
In a statement released Friday, the Dhawan family said:
"We are devastated by the continued tragic loss to our family. In this time of unimaginable sorrow, we would like to grieve with our family and friends, and request everyone to respect our privacy. Please keep us in your thoughts and prayers."
Pallavi was charged in January with the murder of her 10-year-old son Arnav Dhawan, after police found his body in a bathtub in the home, surrounded by bags of melting ice. All along Pallavi has maintained her innocence and said she never hurt her son, who had special needs — a sentiment that was echoed in her sworn affidavit.
The Dhawans said the boy, who had several underlying medical conditions, had died of natural causes, and Pallavi was preserving her son's corpse until Sumeet returned home from a business trip in India. In their culture, the family said, the father must deliver a final blessing.
The medical examiner said the boy's cause of death was undetermined, with natural disease being the most likely factor.
A grand jury had just begun to hear her case, with Arnav's father Sumeet Dhawan providing testimony last week.
NBC 5's Ben Russell, Scott Gordon, Catherine Ross, Frank Heinz and Todd L. Davis contributed to this report.