Who killed Ravana?

Ravana was killed by Rama the seventh avatar of Vishnu. Rama shot the divine arrow that has the power and divinity of the god's in it, the arrow went straight into Ravana's heart and killed him.

Ravana is known to be a mythical creature with several heads. He was known to be very evil and mischievous. He could change to any creature he fit please and do as he pleases.

He was said to be the king of all demons and of the island of lanka. Ravana's mother. Nikasa was also a demon and his father Visravas was the son of Pulastya. Rvana was known to be full of evil when he stole the throne with different foul means and also expelled his brother the god of wealth.