So far, what we know is that there are 5 total numbers that can be entered in a specific order to solve the murder box.
We have received 2 so far, being 1 and 4.
Assuming that the code is going to be in order of when they were released, the code is going to be 14xxx, where X is 3 other numbers.
That means there are only 1000 numbers it could possibly be.
I will attach a list of all those numbers below.
If anyone wants to start trying to solve it, be my guess, but it’ll take some bruteforcing.
https://drive.google.com/file/d/137zBFqcgMMslLTK5gHECR94m6MnRDb1t/view?usp=drivesdk