KANSAS CITY, Mo. (AP) — A Kansas City man who was barred from attending his own trial has been found guilty in the shooting deaths of three people, including his estranged girlfriend.

The Kansas City Star (http://bit.ly/1m9IR2G ) reports 49-year-old Derek Hubbard was convicted Wednesday of one count of first-degree murder and two counts of second-degree murder. The charges stemmed from the November 2011 killings of Hubbard's estranged girlfriend, Stephanie Brown; Brown's cousin, Anthony Carlos Richardson; and Richardson's wife, Mary Richardson.

Hubbard was barred from the courtroom after two outbursts last week, including one in which he attacked his public defender.

In both outbursts Hubbard yelled that he was the victim of a conspiracy that involved Kansas City Police Chief Darryl Forte, a childhood friend of Anthony Richardson.

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Information from: The Kansas City Star, http://www.kcstar.com