As someone who lives close to the hills in Los Angeles, this has been a concern of mine ever since reading that “Maneaters of the Sierra Madre” chapter in Mike Davis’ excellent City of Quartz:

Two coyotes have attacked and killed a 19-year-old folk singer in Nova Scotia, eastern Canada, officials say.  Taylor Mitchell, a promising musician from Toronto, died in hospital after the animals pounced as she hiked alone in Cape Breton Highlands National Park.  Walkers alerted park rangers after hearing her screams.  The rangers shot one coyote, but were still searching for the second.  Attacks by coyotes on humans are rare; they usually prey on deer and hares.  Bleeding heavily from multiple bite wounds, the singer-songwriter was airlifted to a Halifax hospital, but died of her injuries on Wednesday morning, authorities said.

 
Via BBC News: Coyotes Kill Canadian Folk Singer

In the LA Times: Taylor Mitchell Dies After Coyote Attack While Hiking