· prosecutors with the harris county district attorney’s office had long sought the death penalty against the man accused of shooting and killing 35-year-old gregory carhee , 29-year-old. · investigators say alexus williams hired a man to kill her ex, donyavia lagway , gregory carhee and 6-year-old harmony carhee inside their southwest houston home. What happened to gregory and donyavia carhee? · the sentencing trial of a man guilty of killing a houston family of three has come to a close. · then, the masked man began shooting, killing the girls father, gregory carhee , 35, her mother, donyavia lagway , 29, and her sister, 6-year-old harmony carhee. Wednesday, according to houston officials. On march 24, moments before opening statements were given at 30-year-old xavier davis’s trial, he pleaded guilty to the murders of donyavia lagway , 29, gregory carhee , 35, and harmoney carhee , 6. · he admitted to fatally shooting 29-year-old donyavia lagway , 35-year-old gregory carhee , and six-year-old harmony carhee in their houston apartment. Who shot gregory carhee? He also shot another 10-year-old. Citing police, ktrk. Who killed gregory carhee & donyavia lagway? · houston, texas (ktrk) -- xavier davis, the man who pleaded guilty to killing gregory carhee , donyavia lagway , and their 6-year-old daughter, harmony carhee , as another child played dead. · gregory carhee , 35, donyavia lagway , 29, and their daughter harmony carhee , 6, were shot inside their apartment at around 10:30 p. m.