The married couple who police say killed three people in Las Vegas, including two officers, had been kicked off a ranch where anti-government protesters faced down federal agents earlier this year, rancher Cliven Bundy's son said Monday.

Ammon Bundy told The Associated Press that Jerad and Amanda Miller were asked to leave his father's ranch after being there for a few days this spring.

He said that while details were still sketchy, the Millers' conduct was the problem. He called the couple "very radical" and said they did not "align themselves" with the protest's main issues.