SPRINGFIELD - Investigators could finalize their probe into an alleged death threat against Senate President Emil Jones and state Sen. Gary Forby later this week, a police spokesman said Wednesday.

Illinois State Police spokesman Scott Compton said investigators are continuing to interview individuals in connection with the alleged threat, which may have been triggered by the ongoing debate over high electric prices.

"We're certainly putting a full-court press on this," said Compton. "At this point, we're still interviewing and completing the investigation."

"Once we get finished with the investigation, we'll present it to the appropriate state's attorney," said Compton, who added that such a move could come later this week.

No one has been taken into custody in connection with the threat.

In Springfield, Jones did not respond to questions from reporters on Wednesday. His spokeswoman, Cindy Davidsmeyer, said the Senate leader has been made aware of the threats.

The Chicago Democrat has had a one-person security detail for about four years. The guard shadows Jones as he moves about the Statehouse. The guard sits outside Jones' office while the leader is in meetings and stands nearby when Jones is on the Senate floor.

Forby, meanwhile, said he has not taken any extra precautions in response to the threat. He said he understands that customers of Ameren in his district are angry, upset and worried about the huge increases in their bills.

But, he said he remains angry at Jones in the wake of Friday's contentious debate on a one-year rollback of electric rates. Jones used his political muscle to kill a provision to include ComEd in the legislation.

After Jones' maneuver, Forby walked over to Jones' desk. The two exchanged what looked like a friendly high five to observers, but Forby said his comments to Jones included several graphic and explicit words.

"I told him, `I did not appreciate what you've done to me and my district," Forby said. "He blind-sided me. It is the worst thing that every happened to me in Springfield."