coincidence 2: the occurrence of events that happen at the same time by accident but seem to have some connection;
Local examples would be Milwaukee appearances by a Presidential Candidate following tragic National news stories or a mini-flurry of Nazi Funnies in blogs' comment threads.
Coincidences have the appearance of connection but are unrelated.
related 1 : connected by reason of an established or discoverable relation
A local example would be the Green Bay online gun-seller who sold supplies and accesories to shooters at Virginia Tech and Northern Illinois who then shot and killed a total of 39 people. That website makes those killings related.
Another word often misused is Karma. Let's take a look at "Karma."
karma: 1 often capitalized : the force generated by a person's actions held in Hinduism and Buddhism to perpetuate transmigration and in its ethical consequences to determine the nature of the person's next existence
A local example of Karma would be having to swallow long-held beliefs and hold your nose to cast a simple ballot because you'd backed yourself into a corner with your nattering. Karma can often improve your lot in your next life. It can also have resulted in your coming back as a cockroach or WTMJ host in this one.