Man on death row for shooting of York City man among five execution warrants signed by Governor Corbett

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Kevin Mattison

HARRISBURG, PA (WPMT) Governor Tom Corbett signs execution warrants for five men including one man sentenced to die for the 2008 murder of a York City man.

Kevin Mattison, of Baltimore, was convicted for the December 9, 2008, robbery and shooting death of Christian Agosto. Records show that Mattison shot Agosto over a pound of marijuana. He was convicted in 2010 and handed the death penalty.  Mattison’s execution is scheduled for March 12th.

The four men in the other warrants are:

* Terrance Williams, convicted of murder for the beating death of a man on June  11, 1984 during a robbery in Philadelphia County.

* Kenneth Hairston, convicted of killing his wife and son on June 11, 2001 in Allegheny County

*Alfonso Sanchez, convicted for the shooting deaths of a man and woman in 2007 in Bucks County

*Robert Diamond, convicted for the shooting deaths of two men on August 1, 2008 in Bucks County;

All five men are incarcerated at the State Correctional Institution at Greene. Williams’ execution has been scheduled for March 4, 2015; Hairston’s for March 5, 2015; Sanchez’s for March 10, 2015 and Diamond’s for March 11, 2015.

The execution warrants signed today for Mattison, Williams, Hairston, Sanchez and Diamond represents Governor Corbett’s 44th through 48th warrants signed, respectively, since taking office.

Executions in Pennsylvania are carried out by lethal injection. For more information, visit the Department of Corrections online at


  • OneMan'sOpinion

    Hey, ya come up here from MD for a pound of pot, you’d better have the money. No freebies.
    Let’s wait to execute him until pot is legal here and the witnesses can sit there smoking it while the axe falls.

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