Adrian didn't want Grisham to die - not because he's still holding any amount of familial affection towards him, but because he doesn't deserve to find a conclusion that easily.
Death is nothing but an easy way to escape his doomed fate. He should struggle more - he should pay for all of his transgressions and wrongdoings. And he should do that while he is alive.
Adrian couldn't understand why his grandfather never told his condition to anybody else, though. If someone knew about it, it would've been brought up at court since he would've needed medical attention. It's possible that he's only lying, and it's easy to prove it.
But Adrian knows that Grisham is more than aware of that as well - he will not get anything from lying.
"Why...?" he muttered through his teeth, already keeping himself from throwing a fit.
"Why are you telling me first? Did you call me out on purpose for something like this?"
