In a triangle $PQR$, the co-ordinates of the points $P$ and $Q$ are $(-2, 4)$ and $(4, -2)$ respectively. If the equation of the perpendicular bisector of $PR$ is $2x - y + 2 = 0$, then the centre of the circumcircle of the $\triangle PQR$ is:\\
(1) $(-1, 0)$\\
(2) $(-2, -2)$\\
(3) $(0, 2)$\\
(4) $(1, 4)$