(RNN) - A gunman opening fire in the Clackamas Town Center is the latest of mass shootings in 2012. Others include:
On Feb. 27, T.J. Lane opened fire in his Chardon, OH high school cafeteria killing three students.
In Tuscaloosa, AL, Nathan Van Wilkins allegedly walked into a bar and began shooting, injuring 17. No one was killed.
James Holmes is accused of opening fire in an Aurora, CO movie theater at the midnight showing of The Dark Knight Rises, killing 12 and injuring 58 on July 20.
A white supremacist, Wade Michael Page, opened fire at a Sikh temple killing seven people on Aug. 5.
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