Secura, Flax, split.

If Pinman was not himself mafia, as odds would have it he wasn't given the game is still going, then given that he had discovered something he believed to be vital to the mafia's functioning, it would be in the mafia's best interests to get rid of him as soon as possible. Secura's vote would have given them the excuse to do it with the lynch (I don't believe she is mafia herself, at this point.)

TheFlax already had a vote on split, but after Khazaar voted me and Secura voted Pinman, he had two ways to tie it up by changing his vote. He chose Pinman, the guy with the secret, over me, the self-declared (and actual, though as a group you can't know that) bog-standard townie.

Split didn't have a vote down. When he turned up it was tied 2 for Flax and 2 for Pinman. He likewise chose to lynch Pinman over the self-described bog-standard townie.

Both moves are scummy as heck assuming Pinman is innocent and had found what he implied he found. The game continuing implies Pinman is in fact innocent.