A second man allegedly involved in the O.J. Simpson armed robbery case has agreed to plead guilty to a lesser charge and testify against Simpson.

The announcement that Walter Alexander has made a plea deal comes just hours after another defendant, Charles Cashmore, agreed to do the same.

Cashmore will testify against Simpson and the four other men charged with the armed robbery of a sports memorabilia dealer in Sin City.

Simpson and co-defendants Alexander, Clarence "C.J." Stewart, Michael McClinton and Charles Ehrlich are reportedly scheduled to appear in court next month for preliminary hearings.