In Corinth, a city of about 14,000, police cordoned off part of a subdivision where Curtis lived. At least five police cars were on the scene, but there didn't appear to be any hazardous-material crews and no neighbors were evacuated. The one-story, single-family home is similar to the others in the neighborhood — red brick with white trim.
Neighbors, who said Curtis kept to himself and did not seem violent, were concerned by the idea that someone was making poison in the house that sits so close to their bedrooms and front yards.
Next-door neighbor Kayla Latch, 18, lives with her mother and her two brothers and said they were worried that toxic chemicals could be released when investigators enter the home.
"I'm afraid they might open it up and it (poison) might go into the air and hurt someone," Latch said.
Latch said Curtis lived with a woman and a teenage boy when he first moved in, but they appeared to have moved out.
Matthew Latch, Kayla's brother, said he would sometimes hear Curtis playing his guitar outside the house late at night.
Ricky Curtis, who said he was Kevin Curtis' cousin, said the family was shocked by the news of the arrest. He described his cousin as a "super entertainer" who impersonated Elvis and numerous other singers.
"We're all in shock. I don't think anybody had a clue that this kind of stuff was weighing on his mind," Ricky Curtis said in a telephone interview.
Ricky Curtis said his cousin had written about problems he had with a cleaning business and that he felt the government had not treated him well, but he said nobody in the family would have expected this. He said the writings were titled, "Missing Pieces."