Samira's 16-year-old daughter Sevda was shot dead by Iranian security forces on January 9 during mass protests in Tehran, according to BBC Panorama. Samira says a sniper fired from a rooftop and the bullet passed through her daughter's heart. She found Sevda's body days later at a morgue, stacked beneath three other bodies.
Iranian authorities forced Samira to sign a statement blaming "terrorists" rather than security forces for the death before allowing her to bury her daughter, she says. After harassment from authorities during her search for Sevda's body, Samira escaped Iran on foot across mountainous terrain and now lives abroad in hiding.
Samira tells BBC Panorama she is intent on identifying and naming the security force members and officials she believes fired the fatal shots. She describes herself as a "one-woman army fighting the regime" and says there is no going back to normal life.
Iranian authorities acknowledge more than 3,000 people were killed in the protests, though they claim some were security force members. The human rights group Hrana estimates the death toll at more than 7,000, mostly protesters. The Iranian embassy in London told Panorama that foreign powers including the US hijacked the protests and promoted violence.