From reading an article about the traumatic event, one of the goats was also killed by the dogs. I guess the problem has more to do with packs of loose dogs than it does stupid llamas.

Here's some more info/quotes from the owner:

Martin said he’d like to see more awareness, and fewer dogs running wild, in the future.

But that won’t bring Obama back, so he’s making do.

Martin skinned Obama the llama and salvaged some of the prime cuts.

“Llama and goat are comparable, and they’re better than spring lamb,” he said.

The death means that Martin couldn’t bring Obama to the Stanley Ford event, where Obama was scheduled to entertain guests.

Now he’ll have to replace Obama with a different animal “and I guess tell everybody that Obama the llama got killed,” he said.

But there are still signs of life at Diamond M.

During a farm tour on Wednesday, a new llama was born, a black-and-white baby boy, like Obama.
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"Returning hate for hate multiplies hate, adding deeper darkness to a night already devoid of stars." - Martin Luther King, Jr.