SHOULD I MENTION THAT MY MC 1 SUSPECTS MC 2

So i have written 5 chapters yet and this is going to be the 6th one .

I plan to atleast have 11-13 chapters and I have been hinting all the time that that MC 2 is suspecious and might be the killer, which She isn't and it's just misdirection .

So should I have MC 1 say that he suspects MC 2 based on this-this evidence or should I keep audience guessing who have not caught the hints yet ?