A 3-month-old baby that police believe was thrown from a car was found dead on the shoulder of Interstate 275 this morning. After searching for the suspect in the child's death, investigators placed 21-year-old Richard Anthony McTear Jr. in custody about 9:15 a.m. today. McTear was asked about the crime as he was led from a patrol car to the Hillsborough County Sheriff's Office's District 2 headquarters.