Nathan, Savannah, and Sebastian were allegedly abducted by their father Walter Martinez, and their mother, Daisy Arce. Felony warrants for Custodial Interference were issued for both parents on August 8, 2011. They may be traveling to Mexico. Sebastian has blue marks on his left ear and neck. Nathan may go by the alias name Nathan Martinez. Daisy may go by the alias name Daisy Martinez. All of the children's photos can be viewed on www.missingkids.com.