RIVERSIDE, Calif. (KABC) -- A Riverside street was locked down and five houses were evacuated Wednesday while local and federal authorities investigated what appeared to be explosive materials inside a home.
Police and agents from the FBI and ATF said they were moving cautiously at the home in the 8000 block of Oakhurst Place because there were indications of booby traps.
"Officers and agents will be donning their bomb suits, they will be walking in there, they'll be using robots also to go into areas that they don't feel are safe," said ATF agent Christian Hoffman.
The discovery was made while authorities were inspecting the home of 46-year-old William Hunziker, who was arrested Tuesday after reports that he had been firing a gun in his front yard. He was taken into custody on suspicion of elder abuse when a woman in his care appeared to be in need of medical attention due to severe malnutrition.