He didn't. Not in a direct way. Ichiru, he. . . For a while he had been on that man's side. He gave Ichiru a small vial of his blood, which was meant for you. It would have bound you to Rido, as I'm sure you know of how all of that works. [. . .] In the end, though, it was all an act. Ichiru wanted to get close to him in order to get revenge for Shizuka.
[Only. . . It hadn't actually been Rido who let Shizuka out of her confinement, who then attacked and killed his family. It was Kaname.]
He's the one who fatally injured Ichiru, before he sought me out and asked for me to drink the last of his life away.