The books go into just the right amount of detail when it comes to talking about what the reaction of Saddler's death was. I think.
...Yeah, Rachel mentions in her narration how everyone was going gaga over Saddler/David at Jake's house. To everyone else except the Animorphs, Saddler was miraculously well and healthy and talking at Jake's house. Then he goes out (to Taco Bell, perhaps he tells them, to eat with Jake and his friends, he maybe tells them), and they never see him again. Later, Saddler's body is found at or near the hospital.
What would they think of this?