ALFRED (AP) — A Biddeford man charged with killing two teenagers in an apartment at his home is entering a plea of not guilty by reason of insanity.

The Press Herald (http://bit.ly/SKFNhW ) reported Tuesday that 75-year-old James Pak entered his plea at a hearing in York County Superior Court in Alfred. Pak originally pleaded not guilty to two counts of murder in March 2013. He is accused of killing 19-year-old Derrick Thompson and 18-year-old Alivia Welch in December 2012.

Authorities say Pak fatally shot Thompson and Welch in the apartment Pak rented to Thompson and his mother after a dispute about parking. He has been held without bail since arrest.

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