Molotov Cocktail
The molotov cocktail is an explosive weapon used to set a small area on fire. It can set a group of six to seven pedestrians on fire or damage a cars armour in a single throw; Victims will realistically catch fire, then die as charred bodies.
Use of it will normally result in one star of police attention.
One of the most deadliest weapons (dont stand too close), it is difficult to find in GTAIII although more common in the later games.
In GTAIII however it can be found in the abandoned train tunnel next to 8 balls bomb shop in portland, there is a group of homeless people. Killing them will mean they each drop a single molotov cocktail. You can also buy them along with a Flamethrower in a garage in Shoreside Vale.