It was Zaku and Kin from Team Dosu who had both been removed from the Exams following their defeats during the Elimination Round in the Tower of Death (Zaku having had his arms torn up after Shino blocked his palm wind holes. Kin after being knocked out from her head hitting the wall thanks to Shikamaru's Shadow Possession)
No longer inhabited, the First ...
Usually, when a tailed beast is extracted, the host dies. It's an obvious fact in the Narutoverse.
But in cases where the host, or the jinchuriki, is a member of the Uzumaki clan, they will still be alive. This is because of the extreme tenacity of the Uzumaki clan.
There are a total of 9 Rasengans, and all can only be attained by combining the power of the tailed beasts. As of right now, Boruto has 3 types that he can use with the help of his Karma (Which was made to Boruto by Koji Kashin a Jiraya clone), the three types are Wind Style Rasengan, High Compression Rasengan & Vanishing Rasengan.
Wind Style Rasengan ...
Because the jutsu requires a Rinnegan to use it and there wasn't one available on their side.
It is also unclear whether someone summoned by Edo Tensei could use it on themselves.
Madara had Black Zetsu force Obito to perform the jutsu to revive him.
Unfortunately, the simple and short answer is that we do not know who captured the Han and the 5-tails. It could have been anyone of the Akatsuki, including previous unnamed members.
Aside from knowing that the 5-tails has been captured, the only glimpse of information we have on when Han was possibly captured is mentioned by Deidara Naruto Chapter 266. We ...