Slideshow: Colvin, Ochlik at work

International journalists Marie Colvin, 55, and Rémi Ochlik, 28, were killed Wednesday during shelling of the besieged city of Homs in Syria.

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Pictured are Colvin, an American reporting for the Sunday Times, in Cairo's Tahrir Square (AP/Ivor Prickett); Ochlik, a French photojournalist (AP/Julien de Rosa); Colvin with Libyan rebels in Misurata on June 4, 2011 (Reuters//Zohra Bensemr); Ochlik covering demonstrations in Cairo (AP/Julien de Rosa); Ochlik, who quit his studies at age 20 to report on Haiti and then covered many of the recent upheavals in the Arab world (AP/Lucas Dolega); both journalists (Sunday Times and AFP); and Colvin being treated by Sri Lankan army medical staff on Tuesday, April 17, 2001, at a field hospital in Vavuniya, northeast of Colombo (AP).