I wouldn't do that with pathfinding, probably something like give the monster object Bullet behaviour and then create an event 'every tick, monster set angle toward position player.x, player.y. That will make it look like the monster is following you.
If you were to do it with pathfinding it might not look like the monster is following you as it goes to the previous player start point but it would be something like find path to player, move along path, on destination arrived, find path to player.