Holiday Contest 2026 - Team Round - Problem 1

There are 5 suspects, A, B, C, D, E in that order. A claims one of B and E was the killer. B claims that one of D and E was the killer. C claims exactly one of A and B is lying. Darren claims that C is telling the truth. E claims exactly one of C and D is lying. You know that exactly 2 people are lying, and that the killer is definitely lying. Who is the killer?

Enter your answer as 1-5 for the answers A-E respectively.