Original sentence: Her General Hospital character was killed off in February of 2009
Edited sentence: As a devoted human rights activist and an Official Spokesperson for "Amnesty International", Nazanin has worked at a grassroots level and appeared on numerous international TV and radio programs to campaign for the rights of disenfranchised populations across the world.Her General Hospital character died from exposure to a biotoxin in February 2009.In particular, she has been very involved in safeguarding human rights by participating in events that bring attention to the unjust conviction and treatment of Iranian youth, women and prisoners of conscience