“The family of two half-brothers arrested in the murder of a Whidbey Island Navy officer are standing by the men while neighbors struggle to understand how it could have happened.Eben Berriault, 36, and Seth Anderson, 23, were arrested on suspicion of first-degree murder Sunday after investigators served a search warrant on the K Avenue home on the 1600 block.A third suspect, 25-year-old Adam Moore, was arrested Saturday at another address.While investigators puzzle through the evidence, the brother’s family members continue supporting them.Their mother, Eva Anderson, lives in the same house on K Avenue. She said she’s certain that the two men didn’t intend to hurt anyone, whether or not they were responsible for the man’s death.The only thing I can think of is that alcohol puts people out of touch with reality, she said. She added that the men were drinking at home the night of the shooting. The mistake they made was getting drunk here and getting into a car, she said.The brothers’ sister, Grace Anderson, said the police simply have the wrong men. They are not violent people at all, she said. I don’t believe it. It’s some kind of a mistake.She describes her brother Seth Anderson as an animal lover who drives horse-drawn carriages at the Skagit Tulip Festival when he’s not fishing in Alaska. She said he quit a job driving carriages in San Francisco because he didn’t like the way the company was treating the horses. When he has time, he helps out an elderly man on a ranch near Sedro-Woolley.Seth was going to buy a house with horses, she said.Her brother Eben Berriault, she said, is a family man with two children and a wife of 11 years. She said he’s a carpenter who recently got his contractor’s license. She admits that he got into trouble when he was young and was arrested for manslaughter and robbery. But she said he was just with the people who committed the crimes.He was in the wrong place at the wrong time, she said.But the family’s next door neighbor, Del Knutson, said he saw trouble coming and wasn’t surprised about the arrests. He said he was suspicious because Berriault never seems to work but has plenty of money. On top of that, there was a drug bust at the home several months ago.It’s creepy having someone living next to you who could do such a thing, he said.Yet Knutson added that his own children played with Berriault’s children, who were always polite and well-behaved.By all accounts, Eben was a good father, he said, but added that his children were not allowed to go in the house.Another neighbor, Jane Ljubich, said she was shocked to look out her window early Sunday morning and see a police officer carrying a gun from the neighbor’s house. She’s lived on the street for nearly 50 years and said the suspects’ house used to be the old Seahawk Store, a mom-and-pop shop once popular with high school students.Besides the drug bust, she said she’s never had any problems with the suspect’s family in the past, but now is worried about the neighborhood. It’s horrible, she said. Now I’ll keep my doors locked. I wish they’d tell us about the man’s criminal history.Eva Anderson, however, wants to urge people not to jump to conclusions about the case and says her two sons are good people at heart.For now, she said the family is going to concentrate on making a normal life for Berriault’s children and pleading mercy for the two brothers.If they did it, they should be punished for the young man’s life, but the fact is they didn’t intend to do it, she said. They don’t need to go to the electric chair.”