No. The evidence itself, and all evidence derived from that evidence is thrown out. You conduct an illegal search that finds the murder weapon at the suspects h

No. The evidence itself, and all evidence derived from that evidence is thrown out. You conduct an illegal search that finds the murder weapon at the suspects house, you don't get to enter the murder weapon into evidence. You don't get to introduce that the weapon had the victims blood on it, because the only way you know that is that you got the weapon illegally. You don't get to introduce that the weapon had the suspectms fingerprints on it for some the same reason.