
Charlie Hebdo editor and cartoonist Stephane Charbonnier swings a bat at a screen with former French President Nicolas Sarkozy on it during the 2012 French elections. Photographer Steven Wassenaar spent four days with the magazine's staff that year.

Cartoonist Jean Cabut, also known as Cabu, was killed along with Charbonnier and 10 other people Wednesday, January 7, when gunmen attacked Charlie Hebdo's Paris office. In 2006, Cabut penned a controversial cartoon depicting the Muslim prophet Mohammed that appeared on the magazine's cover, Sky News reported.

Potential front pages and drawings for the next issue of Charlie Hebdo hang on an office wall in 2012. The magazine's previous office had been fire-bombed three years before, the day it was to publish a provocative cover lampooning the Prophet Mohammed. They moved to their current office a year ago, Paul Moreira, who works in the building, told CNN's Erin Burnett.

Another one of the shooting victims, cartoonist Bernard "Tignous" Verlhac, sketches a political cartoon in 2012.

Charlie Hebdo staff attend an editorial meeting in 2012.

Cartoonist Philippe Honore, second from right, meets with other staff members in 2012. Honore, who illustrated a cartoon featured on Charlie Hebdo's Twitter feed Wednesday morning, was among those killed in the attack. The cartoon is a drawing of ISIS leader Abu Bakr al-Baghdadi offering his best wishes for 2015.

Bernard Maris, far left, is a columnist who served as the magazine's deputy editor. To his immediate left are Cabut and Charbonnier. All three men were killed in the terror attack.

Verlhac sketches a political cartoon with Corinne Rey, a cartoonist also known as Coco, in 2012. Charbonnier is in the background. Rey said she took refuge under a desk as her colleagues were killed.

Cabut and Charbonnier talk in the magazine's editorial office in 2012.

Maris, second from right, sketches during an editorial meeting.

Charbonnier became editor of Charlie Hebdo in 2009, Sky News reported. "We do provocation; it's been 20 years since we've been doing provocation, and it's being noticed only when we talked about Islam or this part of Islam which raises problems and which is a minority," Charbonnier told BFMTV in 2012.