Jennifer McVeigh will testify for the government when she appears before the grand jury investigating the Oklahoma City bombing, sources said Friday.

“She’s cut a deal,” a federal law enforcement source told The Associated Press on condition of anonymity. “She’s now considered a friendly witness.”

McVeigh, who is thought to share the anti-government views of her brother, bombing suspect Timothy McVeigh, was subpoenaed Thursday and is to testify Wednesday, according to unidentified sources quoted in The Buffalo News.

FBI agents have questioned Jennifer McVeigh at length since the April 19 explosion that killed 168 people and injured more than 500 more. Her brother and Terry Nichols are the only people charged in the bombing.

The 21-year-old community college student is believed to have information about her brother’s involvement with explosives, his political views and his anger over the government’s handling of the Branch Davidian standoff in Waco, Texas, sources told the News.

She may provide information to bolster the theory that McVeigh supported himself and financed the bombing with robberies.