Rebel-controlled northern Syria (CNN) -- Mohamed Rashid walked out of the gate of his house with a giant blood stain on his white T-shirt.

"This is the blood of a martyr! Of a hero! Of a lion!" he bellowed. "This is his blood. It is pure!"

Mad with grief, Rashid kissed his bloody T-shirt before being led away by worried relatives.

Just hours before, Rashid learned his son Abdul was killed in battle in the Syrian city of Aleppo.

Housam Abdul Rashid was a 22-year-old defector from the army. He was also the fourth man from his small hilltop village to be killed fighting for the rebels.

The younger Rashid is one of the casualties of the five-day-old rebel offensive on Aleppo, the country's commercial capital. Another rebel, who asked only to be named "Khorshid" because his wife and children were still living in Aleppo, described how his comrade was killed by a helicopter gunship, while climbing onto a rooftop.

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"Housam's specialty was a sniper," Khorshid said. "He went to the roof, and a helicopter gunship killed him. Another fighter from Aleppo with him was also killed. I was just 4 meters away when it happened."

Khorshid said the rebels mounted their offensive on Aleppo last Friday, two days after a bomb killed four of Syria's top security officials.

Rebel commanders and fighters claimed they made gains, particularly in the neighborhood of Salahuddin. But they were also clearly suffering casualties.

What began 17 months ago as a peaceful protest movement has evolved into a full-fledged armed insurgency.

Answer this series of questions:

1. Who walked away from the residence with a blood stained shirt?
2. What had Rashid just recently learned?
3. Where did the incident take place?
4. How old was Rashid?
5. What city was Abdul killed in?
6. How long was the battle?
7. What was Housam known for?
8. How har away was Khorshid when a fellow rebel was killed?
9. CHow long ago did the resistance begin?
1. Mohamed Rashid
2. learned his son Abdul was killed
3. in battle
4. 22-year-old
5. Aleppo.
6. five-day-old
7. sniper,"
8. 4 meters away
9. 17 months