“By the time she heard from a Dallas homicide detective in 2018, French House had been mourning her mother for two years. The cases connected to Chemirmir had gone cold. Victims’ bodies had been cremated or buried, and their apartments cleared. And all those previously undetected homicides had become part of a larger national problem: a backlog of more than 250,000 unsolved murder cases, a number that increases by about 6,000, nationwide each year.” Texas Observer: Undetected.