But is the missile itself going away? I dont see it, i tried to zoom in but cannot see it
Check out 12th second. Booster section separates from the missile.
Atmaca has a solid fuelled booster engine for initial launch. Once the missile reaches necessary speed it is dropped. You can clearly see separation of the booster.
As it has forward momentum it falls quite a bit further in to the sea. Missile itself carries on with the jet engine (presumably KTJ3200) thrust.
In a different video you can see this missile hitting a target 100km away.