Fall of Sirte Now Imminent

The transcript describes a chaotic scene as a volunteer army attacks a city, capturing positions and taking spoils. Buildings are cleared, revealing bodies of loyalist fighters. The city is mostly deserted, with revolutionaries claiming control. Gaddafi's stronghold is in ruins, erasing signs of his rule.

How did Colonel Gaddafi contribute to the development of the city?

What was the fate of the loyalist stronghold mentioned in the text?