Is it true that Assyria Tukulti-Ninurta I is Nimrod and Nimrod is Ninus just like E.A. Speiser said?

Not the Nimrod of the Bible. This Tukulti-Ninurta lived almost a thousand years too late. I don't see how he inspired the Jewish People to make up a story about him which is not remotely similar. I welcome any atheist to challenge this claim - including user Laila, 

Basically Tukulti ransacked Babylon believing to be fulfilling the orders of the gods. He destroys the cities and brings back idols and graven images back to the capital. 

An extract from Ancient History Encyclopedia:

"Tikulti-Ninurta I addressing the sun god Shamash saying, “I respected your oath, I feared your greatness” and then going on to explain how the king of Babylon had not done so - “He had no fear of your oath, he transgressed your command, he schemed an act of malice” - and so Tikulti-Ninurta I had only been doing the will of the gods when he sacked the city and took the treasures of the temple back to Ashur. "

The Babylonian Chronicle says, “the treasure of Babylon he profanely brought out, and he took the great lord Marduk off to Assyria.” Nor had the destruction gone over well with the devout in his own land. The Assyrian epic that Tukulti-Ninurta commissioned to celebrate the victory over Babylon has an unmistakably defensive tone; it goes to great lengths to explain that Tukulti-Ninurta really wanted to have peace with Babylon and tried his best to be friends with Kashtiliash, only the Babylonian king insisted on coming into Assyrian territory to thieve and burn, which is why the gods of Babylon deserted the city and left it for punishment to the Assyrians. 

Clearly the great king was under pressure to explain not only why he sacked Babylon, but why he took its sacred images back to his own capital. The explanation didn’t convince, and Tukulti-Ninurta’s sacrilege brought about his end."

Nimrod was based on Belus, an Akkadian king, who was deified by his people. The Assyrians, who were basically descendants of the Akkadians continued to worship Belus as a god.