The Maine Medical Examiner’s Office has confirmed that the man killed this morning in the shootout with federal agents in Old Orchard Beach was Thomas Mayne of 5 Sandy Circle.

There was no cause of death listed. An autopsy is scheduled for Wednesday.

3:32 p.m.

Members of a federal team specializing in high-risk search warrants and arrests launched the early-morning raid at the home of Thomas Mayne at 5 Sandy Circle in Old Orchard Beach.

The use of a special reaction team indicates the danger posed by suspect Thomas Mayne and his associates. Prosecutors say Mayne was involved in the shooting of a rival motorcycle gang member in Canaan, Maine, last year.

Special agent Glen “Andy” Anderson, head of the Boston field office for the Bureau of Alcohol, Tobacco, Firearms and Explosives, said one of the agency’s five special reaction teams conducted the raid.

“It was a target we felt needed special response team coverage,” said Anderson at a press conference this afternoon at the corner of Ross and Pine Point Roads in Scarborough, about a mile from the raid.

When agents arrived at 6 a.m they were fired upon, Anderson said, and the agents returned fire, killing one suspect. Anderson did not identify the victim, and instead deferred the question to the state Medical Examiner’s Office. An investigation into the shooting is being conducted by the Maine Attorney General’s Office.

Old Orchard Beach Police Chief Dana Kelly said at the press conference he did not think the presence of an Outlaw gang member in his town suggested the town was in any way unsafe.

“I don’t think Old Orchard Beach is a place where people should be concerned about these things more than anywhere else,” Kelly said. “This problem exists wherever you go.”

Mayne was one of two people agents were seeking to arrest this morning. The other, Thomas Benvie of Springvale, had his initial  appearance at 1:30 p.m. today in U.S. District Court in Portland. A detention hearing for Benvie is scheduled for Wednesday at noon.

2:28 p.m.

Jim Boutet, who owns Jim’s Auto Salvage at 3 Ross Road, which is adjacent to the home of Thomas Mayne in Old Orchard Beach, said he has been told that his neighbor was the man killed by Alcohol, Tobacco and Firearms agents in this morning’s raid.

“It doesn’t take long for word to spread,” Boutet said.

Boutet said he had sold Mayne a couple of Chevy Blazers over the years, but did not socialize with him

“He was a customer and a neigbhor,” he said. “I got along with him.”

Boutet said Mayne was a known biker, and described him as bearded, thin and quiet, a “typical Harley Davidson rider.”

2:05 p.m.

The nationwide roundup of motorcycle gang leaders this morning included two arrest warrants being executed in Maine.

Warrants were executed for the arrest of Thomas Mayne of Old Orchard Beach and Thomas Benvie of Springvale. A third Maine man, Joseph Allman of Hollis, was arrested where he was working in Mississippi.

Federal Alcohol, Tobacco and Firearms agents conducted searches early this morning at the homes of Mayne and Benvie and at 490 Hollis Road in Dayton, which reportedly is an Outlaws clubhouse, according to a spokesman for U.S. Attorney’s Office in Richmond, Va., which is directing the case.

The defendants are likely to make their initial court appearance within the next 48 hours.

1:49 p.m.

Authorities have not identified the person who was shot or the specific target of this morning’s raid; however, 5 Sandy Circle is owned by Thomas Mayne, one of the people indicted in connection with the crackdown.

Old Orchard Beach tax records say the 624-square-foot house is a single-story bungalow and that Thomas and Diane Mayne have owned the property since 2000 when it was purchased for $70,000.

Mayne was indicted on charges that he and another member of the Outlaws motorcycle gang shot a member of the rival Hell’s Angels motorcycle gang in Canaan last year.

He is one of 27 people named in a federal indictment charging, among other things, racketeering conspiracy – the charge that encompasses organized crime – conspiracy to commit violence, illegal possession of firearms, civil rights violations, witness tampering and drug dealing.

Jeffrey Barrett, who has lived at 4 Sandy Circle for the past 22 years, said he and his wife were getting ready for work this morning when they heard the raid begin next door.

Barrett said they heard people yellling that the house was surrounded and then heard gunshots.

“We kind of crouched and stayed low,” Barrett said. He said police then escorted the Barretts from their house and allowed them to take one of their cars and leave.

“It was unsettling,” said Barrett.

He said Mayne had lived next door for about 10 years but that they seldom spoke, even though the houses are relatively close together.

“We had nothing in common,” he said, adding, “They had loud motorcycles.”

In 2007, records show Mayne was convicted of carrying a concealed weapon, unlawful possession of a scheduled drug, and possession of marijuana. He spent four days in jail and was fined $750.

Scarborough police were keeping media about a mile away from the house where this morning’s raid and officer-involved shooting occurred.

12:43 p.m.

The federal crackdown on the Outlaws motorcycle gang stems in large part from its turf war in different parts of the country with the Hell’s Angels.

That conflict erupted in Portland in 2002 and 2005, when groups affiliated with the national motorcycle gangs descended in large numbers on Portland’s Old Port and clashed occasionally with each other and with police.

Hell’s Angels affiliates like the Iron Horsemen have traditionally held sway in Maine, but at the time a group linked to the Outlaws, the Black Pistons, had formed and was trying to show its strength, police said at the time.

In 2005, members of the Outlaws fought with members of the Vietnam Vets Motorcycle Club at a tattoo parlor on Forest Avenue, and a 58-year-old member of the latter group was shot in the groin and leg, according to police.

The federal indictment unsealed today says that in September, Hell’s Angels members assaulted two Outlaws members at a gas station in New Haven, Conn. The patches worn by gang members to show their loyalty were taken from the Outlaws by the Hell’s Angels, a sign of disrespect.

In October, the national Outlaws president asked Michael “Madman” Pedini, who had held the rank of enforcer in the Maine Outlaws, to personally take revenge on the Hell’s Angels, according to the court papers.

Joseph Allman, former president and enforcer of the Maine Outlaws, said at the time that other members of the group were “taking care of business” in Maine, the indictment says.

On the evening of Oct. 8, a Madison man was found shot in his pickup truck at the entrance to the Hell’s Angels clubhouse on Route 23 in Canaan.

The indictment says Pedini and Thomas Mayne staked out the Hell’s Angels clubhouse then confronted and shot the rival gang member. He was hospitalized for numerous gunshot wounds.

11:38 a.m.

This morning’s shootout at an Old Orchard beach home is part of a national crackdown on the Outlaws motorcycle gang, which federal prosecutors say is “a gang whose entire environment revolves around violence.”

The case emanates out of Richmond, Va., but has strong ties to Maine where prosecutors allege members of the Outlaws were rewarded for trying to kill a member of a rival gang.

The federal indictment says that in October 2009, Outlaws president Jack “Milwaukee Jack” Rosga, 53, of Milwaukee, directed members of the motorcycle gang to retaliate against members of the Hell’s Angels for an earlier attack on two Outlaw members.

The orders resulted in the near-fatal shooting of a Hell’s Angels member in Canaan, Maine. On the evening of Oct. 8, a Madison man was found shot in his pickup truck at the entrance to the Hell’s Angels clubhouse on Route 23 in Canaan.

The two Outlaws who carried out the attack received new patches indicating they had performed a violent act on behalf of the gang, prosecutors allege.

The indictment lists several other acts of violence, including the 2008 attack on a black man in Fredericksburg, Va., solely because of his race, then intimidating witnesses in the case.

The indictment also accuses the gang of engaging in kidnapping, robbery, extortion, drug dealing and illegal gambling.

Today’s roundup of Outlaws corraled Rosga and other members and associates of the American Outlaw Association, with 26 people in all being named in the indictment.

Among them is Joseph Allman, 46, who previously served as president and enforcer of the Maine chapter.

11:02 a.m.

A man in Old Orchard Beach was shot and killed during a federal raid on a house at Sandy Circle this morning.

The Maine Attorney General’s Office, which investigates all uses of deadly force by police, said its investigators have responded to the scene of the shooting.

Federal agents with the Bureau of Alcohol, Tobacco and Firearms were executing a search warrant at 6 a.m. Inside the house were two men and two women.

“Agents met with resistance and gunfire was exchanged,” said Kate Simmons, spokeswoman for the Attorney General’s Office.

One of the men inside was fatally wounded. Nobody else was hurt, she said.