you can clearly hear this >> the child glenda perkins brought into the world is now at her feet, gunned down, murdered. this mother's heartbreakest in her call to 9-1-1. >> this just happened? >> i don't know i don't know, i don't know -- >> reporter: mother and son were so close, they lived right across the street from one another in plant city. perkins last saw her son friday friday night. she noticed his front door was open sunday. something told her to see if everything was okay. it wasn't >> i went in there and it was a mother's worst nightmare. >> reporter: plant city police could not find any evidence that someone forced themselves into the home. his mother can't think of anyone who would want to hurt he was always a people's person us a been a people's person. >> reporter: and now as police hunt for her son's killer, she's relying on family and friends for comft. >> my heart is broken. >> reporter: in the past 90 minutes, we saw homicide detectives back out here knocking on doors, wanting to see if people heard or saw anything. right now, they are not sure when brown was killed.