Tyler Robinson confessed to his trans boyfriend in a series of text messages that he killed Charlie Kirk, but the beau never alerted the police, Utah prosecutors alleged on Tuesday.

Prosecutors released a chilling exchange between the accused gunman and his live-in partner, Lance Twiggs, in which Robinson, 22, admitted to carrying out the assassination , said where he stashed the murder weapon, and told Twiggs to keep quiet.

The release of the messages has sparked questions about whether Twiggs could face arrest for not coming forward with what he knew.

Twiggs — who is transitioning to female — received the messages from Robinson just hours after the killing on Sept. 10 but the boyfriend didn’t tell cops. And investigators weren’t able to track Robinson down until a least a day af

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