This 2012 photo shows Yellow Dogs band member, guitarist Soroush Farazmand at the Death By Audio performance space in the Brooklyn borough of New York. Police say a musician who shot and killed three other Iranian men inside a New York City apartment before committing suicide was upset because he had been kicked out of an indie rock band. Ali Akbar Mohammadi Rafie gunned down the men just after midnight on Monday, Nov. 11, 2013. Victims Soroush and Arash Farazmand were brothers who played in a band called the Yellow Dogs. The third victim, Ali Eskandarian was also a musician. After the shooting, investigators found a guitar case on a rooftop they believe the shooter may have used to carry the assault rifle used in the attack. (AP Photo/Danny Krug) NO SALES This 2012 photo shows Yellow Dogs band members, from left, Koroush "Koory" Mirzaei, Siavash Karampour, Arash Farazmand and Soroush Farazmand at The Gutter in the Brooklyn borough of New York. After the shooting, investigators found a guitar case on a rooftop they believe the shooter may have used to carry the assault rifle used in the attack. This 2012 photo shows Yellow Dogs band members, from left, Soroush Farazmand, Siavash Karampour, Arash Farazmand and Koroush "Koory" Mirzaei, front, right, are seen at The Gutter in the Brooklyn borough of New York. This 2012 photo shows Yellow Dogs band member, bassist Koroush "Koory" Mirzaei at the Death By Audio performance space in the Brooklyn borough of New York. This 2012 photo shows Yellow Dogs band member, singer Siavash Karampour, at the Death By Audio performance space in the Brooklyn borough of New York. NEW YORK (AP) - Iranian musicians Soroush and Arash Farazmand came to the United States to pursue their passion - playing music in an indie rock band called the Yellow Dogs. But they gained their notoriety in another, horrific way. The brothers were among three men shot and killed in their Brooklyn apartment early Monday by a fellow musician who police say was upset over being kicked out of another Iranian band. "They wanted to be known for their music," said Yellow Dogs manager Ali Salehezadeh. I guess now we have a gun story. ... It's so sad. The Yellow Dogs came from Iran three years ago after appearing in a film about the underground music scene there. The brothers were a guitarist and a drummer who had just received political asylum. Police said gunman Ali Akbar Mahammadi Rafie, 29, killed himself on the roof after struggling with a survivor of his former band, the Free Keys. Rafie "was upset that he wasn't in the band anymore" said New York Police Department spokesman John McCarthy. Investigators suspect the shooter and his former bandmates may have had an argument over money, he added. Another person killed, Ali Eskandarian, was also a musician but not in the band, and the wounded man was an artist. The row house in the industrial neighborhood of East Williamsburg where the victims lived had been a hangout for artists who attended parties there. The musicians all knew one another, the manager said. But Rafie hadn't spoken to the victims in months because of a "very petty conflict," Salehezadeh said, declining to give specifics. The rampage erupted when the gunman climbed over an adjoining roof to the home, then down to a third-floor terrace where he opened fire through a window, killing the 35-year-old Eskandarian. The shooter then killed Arash Farazmand, 28, in a third-floor bedroom and Soroush Farazmand, 27, in a second-floor bedroom while he was on a bed using his laptop computer, police said. The fourth tenant was hit in the arm before Rafie and his former bandmate struggled over the gun until the clip fell out, police said. Rafie put the clip back in the rifle, went back to the roof and shot himself in the head, police said. Police Commissioner Raymond Kelly said it had been purchased in upstate New York in 2006 and police were investigating its history. Originally from Tehran, the Yellow Dogs were the subject of a 2009 film, "No One Knows about Persian Cats," which told the semi-fictional tale of a band that played illegal rock shows in Tehran. The film won a prize at the Cannes festival. The band came to the United States to pursue the dream of playing rock music in an open society, their manager said. "You can't be a rock star in Iran," said Salehezadeh. The group played recent gigs in New York at small but hip venues like the Knitting Factory and Brooklyn Bowl, and their dance music sound is a little like Joy Division. "They were great kids who people just loved," Salehezadeh said. A friend of the brothers' family, Golbarg Bashi described the family as "very progressive, very open-minded." Salehezadeh said the victims' relatives were stunned by the violence.