told investigators he did not know the victims or their names, despite authorities confirming that the couple lived there.

Houston Police stated the shooting occurred entirely within the residence and are treating the case as an isolated incident. Authorities emphasized that there is no broader threat to the public.

 You will be found'

What they're saying:

Gabriel said she believes her son likely knew the person who shot him.

She noted that detectives seized footage from several exterior security cameras mounted on the house, but said she has struggled to receive updates from investigators.

 I want answers, and I know it takes time,  Gabriel said, adding a warning to the person responsible.  I know they're not gonna turn themselves in, but just know you will be found. 

Gabriel remembered her son as a gentle man who was always smiling and cared deeply about others. Clark was a father; his son turns six years old next month, a milestone Clark would have celebrated alongside his own 32nd birthday.

What you can do:

Anyone with information regarding the shooting is urged to contact the Houston Police Department Homicide Division (713-308-3600) or Crime Stoppers (713-222-8477). All Crime Stoppers callers may remain anonymous.