A 1999 University of Utah Medical School graduate is being held without bail -- in Illinois -- accused of murdering three adults and a child in a revenge scheme.

Police allege Anthony Garcia, 40, was targeting two professors -- at Nebraska's Creighton University -- after they fired him in 2001.

In 2008, police say Garcia stabbed the 11 year old son of one of the professors, and his housekeeper, killing both of them.

Then two months ago, authorities believe Garcia shot and killed the second professor and stabbed his wife to death as well.