listContains revamped

    public boolean killRingContains(String name) {
        AssassinNode current = ringFront;
        return listContains(current, name);
    }

    public boolean graveyardContains(String name) {
        AssassinNode current = graveyardFront;
        return listContains(current, name);
    }

    public boolean gameOver() {
        return ringFront.next == null;
    }

    public String winner() {
        if (!gameOver()) {
            return null;
        }
        return ringFront.name;
    }

    private boolean listContains(AssassinNode current, String name) {
        while (current != null) {
            if (current.name.toLowerCase() == name.toLowerCase()) {
                return true;
            }
            current = current.next;
        }
        return false;
    }