Chihuahua pup killed by another dog at no-leash park By MATT CAMPBELL The Kansas City Star The no-leash dog park within Penn Valley Park, open two years, has registered its first fatality. A 4-month-old Chihuahua was killed by another dog Friday morning, prompting heightened calls for a separate park for smaller dogs. “I was standing two feet away from him, and this dog just picked him up and crushed him,” Tara Blomberg of Kansas City, Kan., said tearfully of Gizmo, her Chihuahua puppy. She said she had taken the dog to the park several times before without any trouble. Amy...