As the nation reels from the mass shooting at Sandy Hook Elementary School in Newtown, Conn., many took to Twitter to share condolences, prayers and opinions.
Charles Darwin publishes "On the Origin of Species," Jack Ruby shoots Lee…
Click here to read Bob's blog.
No email address was supplied by
To complete your registration on this site, please supply an address.
Please confirm or modify the email address to which you will have subscription offers sent.
For a more personalized experience, please supply the following optional information.