LAS VEGAS — A member of the Mongols motorcycle club was sentenced Tuesday to 18 to 45 months in prison for his part in a deadly casino brawl with rival Hells Angels during a biker rally in 2002.

Alexander Alcantar, 35, of Los Angeles, pleaded guilty in November to felony manslaughter in the slayings of Hells Angels members Robert Tumelty Jr. and Jeramie Bell.

In court, Tumelty's widow, Tressa O'Lear, called Alcantar "the coward who pulled the trigger," her husband's death "senseless and tragic," and the sentence too light.

Tumelty, a Stockton motorcycle shop owner, was one of three people killed in the melee during the Laughlin River Run at the Harrah's Laughlin hotel-casino. Prosecutors say Bell fatally stabbed Mongols member Anthony Salvador Barrera, 43, of Rancho Cucamonga, Calif.

Tuesday's sentence was part of a plea deal involving Alcantar and five other Mongols members who avoided trial on charges including murder, attempted murder, conspiracy, battery and assault. Each could have faced a possible sentence of life in prison on the murder charge.

Alcantar's lawyer, Dominic Gentile, told the judge Tuesday that the combatants from the rival motorcycle clubs knew what they were getting into when a series of slights, snubs and taunts escalated to brawling with guns, knives, wrenches and chairs.

"Given the nature of the melee that broke out, there is a certain assumption of risk," Gentile said. "Mr. Alcantar himself was shot and stabbed."

Prosecutor William Kephart said prosecutors aimed to ensure the major combatants were punished.

"We dealt with the main players," he said. "We felt like we really did what we could do with this case."

Pedro Martinez Jr., 28, was sentenced this month to two to five years in prison after his guilty plea in November to felony battery with a deadly weapon causing substantial bodily harm. He could be freed by summer with credit for time served, lawyers said.

Kenneth Dysart, 45, of Los Angeles, and Benjamin Leyva, 36, of Bakersfield, Calif., were each sentenced this month to 12 to 30 months in prison. Dysart pleaded guilty to discharging a firearm into a structure, while Leyva pleaded guilty to battery. Leyva could be free soon after credit for time served.

Roger Pinney, 63, of Newport Beach, Calif., was sentenced this month to a year of probation after pleading guilty to conspiracy to commit battery or provoking commission of breach of the peace, a gross misdemeanor.

Sentencing in Las Vegas for Mongols member Walter Ramirez, 34, has been postponed pending his sentencing on a unrelated conviction stemming from a brawl at a casino near Palm Springs, Calif., Kephart said.

Six Hells Angels members were sentenced previously after taking plea deals in separate federal and state cases stemming from the Laughlin brawl. Most got about 30 months in state prison after pleading no contest to charges that spared their club being branded a criminal enterprise.

Federal prosecutors dropped charges against 36 other Hells Angels from five states originally named in the federal case. No current or former Mongols members were charged in the federal case.

One Hells Angels member, Frederick Donahue, 43, remains a fugitive on murder and attempted murder charges. Kephart has said Donahue will be prosecuted if he is found.

The brawl marred the 2002 Laughlin River Run motorcycle rally and prompted strict police enforcement at the event held in April in the Colorado River resort town about 100 miles southeast of Las Vegas.