The brother of a man suspected of kidnapping and killing four members of the same central California family was arrested in connection with the horrific crime, authorities said Friday.Merced County Sheriff's deputies late Thursday night booked 41-year-old Alberto Salgado into custody on suspicion of criminal conspiracy, accessory and destroying evidence, according to a department statement.From the outset of the investigation, Merced Sheriff Vern Warnke speculated that Jesus Manuel Salgado had help in the kidnapping, which was caught on surveillance cameras.In the family's first comment since bodies were found on Wednesday night, Singh said they're grateful for the work of law enforcement, tips from good Samaritans and support from the community.Singh said the family hopes to work "with both legislators and advocates to ensure that our criminal justice system does not let evil roam on our streets and target the innocent.""