I would use an epoxy specifically formulated for penetrating and gluing wood--WEST epoxy; no pins. If you carefully mask along the edges of the crack (Magic Mending tape works well), you will minimize cleanup, which should be done immediately, before cure is completed.
Resin and slow hardener, thoroughly mixed, is applied over and over, until the crack won't absorb any more. Sometimes it is possible to use a razor blade or toothpick to ever so slightly open the crack, without damaging the edge; this is removed once the crack will take no more epoxy.
Modest clamping pressure can be applied after allowing sufficient time for penetration, but before the epoxy begins to stiffen. If clamped too soon, it is possible to create a dry glue joint with insufficient glue.
