The coyote pup was apparently hit by a car. A week or so ago, when adult coyotes attacked a large dog and were later shot, I speculated that “to go after such a formidable opponent suggests the coyotes were protecting a den.”

“Officials are trying to determine if the youngster is related to the pair of animals that was shot last week”

UPDATE: The Chronicle is suggesting that the coyotes became more aggressive as a result of people feeding them.