call your cardiologist and ask about attr-cm. >>> it's june of 2019, and linda collins has been missing trip on memorial day. >> linda's father, and her son, butch smith, had went over to her house to do a wellness check, to try to locate her, find out what was going on. >> her family finds a strange, dark stain on the kitchen floor but there no sign of linda. >> they were searching, and they could smell an odor outside the house. and butch had looked underneath the tarp that was covering up some building material in the driveway of the house. >> i went over there to it and raised the tarp up. and i was just kind of in shock. i saw my mom there. and she was wrapped up in one of my blankets from whenever i was younger. >> butch found his mother's body in an advanced state of decomposition. >> so, she had been dead several days? >> yes. >> an emotional butch now calls his sister tate to break the devastating news. >> i just collapsed. my world just crumbled in that moment. >> we have to call the police. >> 911, what is your emergency? >> i believe somebody's died. it's linda collins-smith