Murderers and Victims have same Birthday?

Okay, so this is trippy. Of the Domestic Murder/Suicides that have occurred recently, 4 of the people involved have a Birthday on May 21, different years. All have Sun at 30 Taurus.

Yesterday I noticed that wrestler Chris Benoit, who killed his wife, their son and then himself last week-end had the same Birthday as his wife (info from Wikipedia articles):

Chris Benoit
b. May 21, 1967 Montreal, Canada

Nancy Benoit
b. May 21, 1964 Boston, Mass

(their son, Daniel Christopher Benoit
b. Feb. 23, 2000 Atlanta, GA?)

Then I picked up on an article on John and Susan Townley's website: http://www.prweb.com/releases/2007/6/prweb536456.htm

It looks like Jessie Davis, the pregnant woman in Ohio, shared the same exact Birthday with her Boyfriend, who murdered her:

Jessie Davis
b. May 21, 1981 (place?)

Bobby Lee Cutts, Jr.
b. May 21, 1977 (place?)

Date of murder probably June 14, 2007, Ohio

What are the chances? Is this an Internet Astro joke or something? I wish I could clean up my potty mouth but it won't be today because this is just a pee in the pants moment.