PORTLAND – A Wells man is facing a murder charge in the death of his childhood friend, even though the fatal shots apparently were fired by police during a confrontation in a Chicago train station.

Daniel Wentworth, 26, was charged last weekend with murdering Andrew Ross, 25, also of Wells. Wentworth was charged with murder because his actions resulted in Ross’ death, according to a spokeswoman for the Cook County Circuit Court clerk’s office.

Police do not believe either Wentworth or Ross fired their weapons during the Dec. 12 gunfight at Chicago’s Union Station.

Police said the Chicago drug task force had been tipped by New York officials to the whereabouts of Wentworth and Ross, suspects in the Dec. 9 robbery of guns and cash from a Lebanon auction house, when the two men paid cash for Amtrak tickets in Syracuse.

Authorities said the shootout began when one of the men drew a .40-caliber semiautomatic pistol and pointed it at a police officer.

Ross was killed. Wentworth, who suffered multiple gunshot wounds, was in critical but stable condition at a Chicago hospital Tuesday.

A Chicago police officer who was wounded has been released from the hospital.

Maine State Police have issued a warrant for the arrest of a third suspect, Michael Benjamin Sales of Syracuse, N.Y., and are searching for a fourth.

Police said finding Sales could help them understand why Wentworth and Ross were traveling from Syracuse to Tucson, Ariz. The two men were armed, wearing bulletproof vests and carrying $15,000 cash when they were stopped by police and drug agents at the train station.

“Sales should be considered armed and dangerous,” Maine State Police Lt. Theodor Short said. “We have alerted police agencies nationwide and spoken to police departments in New York specifically in attempts to find Sales.”

Sales is described as 5 feet 6 inches tall, 150 pounds, with short brown hair and hazel eyes.

Police believe Sales rented a sport utility vehicle that was found in Lebanon, outside Gateway Auctions on Route 202. The vehicle contained guns, a grenade launcher, tranquilizer guns, ammunition, night-vision equipment, microphones, masks, gloves and cash. Police said Wentworth’s name was on identification found inside.

Police believe the suspects took $30,000 in cash from the auction house, but left behind the guns, weapons, jewelry and other items when the burglary was interrupted.

Both Wentworth and Ross have criminal records in Maine. Wentworth was convicted of burglary and possession of a firearm as a felon, and Ross had an outstanding warrant for driving under the influence.

Ross’ family members in Wells said authorities are unfairly characterizing their son as a dangerous criminal and that he was not part of a larger criminal group.

Oklahoma authorities have an outstanding warrant for Wentworth’s arrest on a felony concealed weapon charge and a charge of public intoxication stemming from a Sept. 11, 1997, shooting in a bus terminal. Police said a bullet went through a woman’s lower leg and then grazed another woman’s arm when he dropped a backpack filled with three loaded guns. Wentworth posted bail but never returned for his court date.

In Chicago, Wentworth is being held on a $3 million bond. He is scheduled to appear in court on Jan. 5.