LOCKPORT – John S. White of Niagara Falls, leaning on a cane and walking with difficulty, pleaded guilty Wednesday to selling the painkiller morphine to a police informant last year.

White, 54, of 27th Street, admitted to fifth-degree criminal sale of a controlled substance and was scheduled for sentencing June 11 by State Supreme Court Justice Richard C. Kloch Sr.

The drug deal occurred Feb. 21, 2012, in the Falls, Assistant District Attorney Peter M. Wydysh said. It was one of two drug deals for which White was indicted.