PHILADELPHIA. (AP) - A New Jersey woman who bought a handgun used in the shooting death of a Pennsylvania state trooper has pleaded guilty to a federal charge under an agreement with prosecutors under which she would be placed on house arrest for a year.

Prosecutors said Emily Joy Gross was living in Westfield, N.J., but said she was living with Daniel Autenreith near Easton when she bought the gun in May 2009. Nine days later, Autenreith used it to kill Trooper Joshua Miller and wound a second trooper after a high-speed chase that ended in the Poconos. Autenreith was killed in the shootout.

Gross pleaded guilty Wednesday to making a false statement to a federal firearms licensee; a second count was dropped.

Gross is scheduled for sentencing May 2.

(© Copyright 2010 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)