Illinois state police have arrested a doctor from Indiana in connection with four homicides in Nebraska.
Doctor Anthony Garcia, of Terre Haute, is being held on suspicion of four counts of first-degree murder.
Authorities believe Garcia shot and killed a Creighton University professor to death, then stabbed his wife to death in 2003.
Another professor’s 11-year-old son and housekeeper were fatally stabbed in 2008.
The police chief in Omaha says, authorities believe Garcia acted alone.