The reward’s increased for a tip that’d lead to an arrest in a two-year-old murder investigation in Hampton.Fifty-three-year-old “Bobbi” Crawford was found dead in her home on November 17, 1999, and authorities are now offering a 19-thousand-500 dollar reward for information that would lead to an arrest and conviction in the case. Crawford worked at Ellsworth Community College in Iowa Falls. The Franklin County Attorney says they’re still following up on tips, but unfortunately can’t say an arrest is imminent.