In some versions of the story, Loki gets away with Baldur's death without the other gods realizing he was behind it - but later he shows up drunk and uninvited to a feast, calls Odin gay and Thor a coward, claims to have slept with Tyr's wife, and admits he killed Baldur to his mother's face, (All in the form of an improvised poem) and then he gets bound.
Loki the god of basedness
Gods: "Yo lets throw shit at Baldur. It doesn't matter anyway, he's invincible"
Loki: M I S T L E T O E