Killer left note about ultrasonic waves, police say
The man who shot and killed a rookie California police officer left a letter on his bed claiming police bombarded him with ultrasonic waves, officials said.
Police in Davis on Saturday made public the one-paragraph letter they said was written by Kevin Douglas Limbaugh, 48. He killed himself Thursday after shooting Officer Natalie Corona.
“The Davis Police department has been hitting me with ultra sonic (sic) waves meant to keep dogs from barking,” the letter said. “... I did my best to appease them, but they have continued for years and I can’t live this way anymore.”