Peter Johnson Jr. updated us this morning on Charlie Hebdo newspaper's long history of controversial cartoons. 

UPDATES: At Least 12 Killed in Terror Attack at Paris Newspaper Office

The paper's satirical drawings of the Prophet Muhammad had angered Muslims over the past decade. 

Authorities said today's terror attack, which left at least 12 people dead at the Paris newspaper office, came despite increased protection. 

Masked gunmen attacked the office, reportedly with AK-47s, before fleeing. 

The paper's most recent tweet was a picture of ISIS leader Abu Bakr al-Baghdadi. The message translates to "season's greetings, by the way."

Johnson Jr. said this attack is part of a new war on the media by terrorists. 

The paper has faced lawsuits for alleged anti-Semitism as well and in 2011 was targeted in a firebomb attack that was linked to a Prophet Muhammad cartoon (shown above.)

The newspaper's executive editor was acquitted at trial in 2007 after several Muslim groups sued the paper over Muhammad cartoons.

A cover cartoon in October mocked ISIS. 

Watch more below: