A three-year-old girl died on Monday after being seriously wounded when a man went on a stabbing spree in the US state of Idaho two days before, police said.
The girl was evacuated by air to neighboring Utah for treatment, but did not survive her injuries, police said in a statement.
"Of the other eight victims, one child has been treated and released from the hospital. Seven victims remain in the hospital, many with serious or critical injuries," according to police.
The Saturday night attack took place at a toddler's birthday party in a low-income apartment complex for refugees.
The suspect, identified by police as Timmy Kinner, 30, of Los Angeles, was apparently motivated by revenge after being asked to leave the residence in the state capital, Boise, on Friday.
He then returned on Saturday night, first targeting the children attending the birthday party, then the adults who tried to protect them.
Kinner was scheduled to appear in court on Monday for his arraignment.
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