Seven jurors have been selected and more are expected to be chosen Wednesday to try a man charged with instigating the torture killing of a mentally disabled western Pennsylvania woman in February 2010.

The defense attorney for 26-year-old Ricky Smyrnes, of Greensburg, argues his IQ is too low for him to be executed. A Westmoreland County judge last year rejected Smyrnes' offer to plead guilty but mentally ill in the death of Jennifer Daugherty.

Investigators say Smyrnes and five others tortured Daugherty in a dingy Greensburg apartment before killing her and dumping her body. Another co-defendant has already been sentenced to death, and another to life in prison.

District Attorney John Peck wants the jury to convict Smynes of first-degree murder and sentence him to death once testimony begins Feb. 4.