A second co-defendant in the O.J. SIMPSON armed robbery case has agreed to testify against the sports star-turned-actor in return for a reduced sentence. Walter Alexander, 46, told a judge on Monday (15Oct07) he plans to plead guilty to conspiracy to commit robbery in the alleged hotel suite theft of sports collectibles. Earlier on Monday morning, co-defendant Charles Cashmore pleaded guilty to being an accessory to robbery in a Las Vegas courthouse. He will also testify for the prosecution when the case comes to court. Both Cashmore and Alexander are expected to testify that guns were involved in the September (07) raid that landed the former American football star jail. According to reports, Cashmore will testify that two of the men in Simpson's posse were carrying guns. Simpson spent three days in a Las Vegas jail following the incident. He was then released on bail and allowed to return home to Florida.