DEER PARK, Texas (KTRK) -- The grandfather of three children killed inside their own Deer Park home by their mother tells ABC13 he is devastated."They were kids you wanted to have around, they really were," said Murvin Auzenne Sr. "They played well, they talked to the adults. They're amazing children in all kinds of fantastic ways."Tuesday morning, the bodies of 11-year-old Parrish Auzenne, 9-year-old Eleanor Auzenne, and 7-year-old Lincoln Auzenne were found inside their home in the 1400 block of New Orleans Street.On Thursday, the Harris County Medical Examiner's Office ruled their deaths as a murder/suicide, with their 39-year-old mother, Ashley Auzenne, as the suspect.Court records reviewed by ABC13 show Ashley and Murvin Auzenne Jr. had just finalized their divorce last week."The family has all rallied around my son, Murvin," said the elder Auzenne. "Our focus is only on one thing: helping through this difficult time."Meanwhile, parents were worried about the well-being of their children at Deer Park Elementary School Wednesday, where two of the Auzenne kids attended school."It really makes me mad, to be honest," said Deer Park Elementary parent Chris Pierce, who described the children as smart and loving. "It's just amazing how it affects everybody whether they go to school with them or not."A family member asked police to do a welfare check on the family Tuesday, and that is when officers made the gruesome discovery.Investigators say a gun was found inside the home.