The Facts: 
March, 2002:  Three women are found shot to death over a three week period on the streets of Beacon Hill, a tony Boston neighborhood. All have a bloody numeral '3' painted on their foreheads. The victims seem to have no connection to each other. Forensic examination and witness accounts provide few leads.

The Victims:
Victim #1:  Leigh Chasa, age 30, found murdered on 3-5-02. Owner of a Beacon Hill coffee shop with her husband, Mike Chasa. Mother of a five-year old daughter.

Victim #2:  Clotilde Eames, age 25, found murdered on 3-14-02. Single graduate student at Finchley College. Works as a research assistant to a Classics Scholar, Professor Putnam Cowley.

Victim #3:  Dr. Amy Tropos, age 34, found murdered on 3-21-02. Family practice physician at Boston General Hospital. Married to neurologist Dr. Derek Douglas.

Questions I've pondered three murders within three weeks, with the numeral '3' painted on each victim? Serial killer? No further murders were committed, so I'm not so sure. What do you think?