The HSCA analyzed the Zapruder film with the following results:
1) First shot fired between Z-162 and Z-167. Governor Connally turns his head rapidly from his left to his right.
2) Second shot fired between Z-181 and Z-192. Impact on the limousine between Z-182 and Z-193. President abruptly stops in the midst of a wave and turns to his wife between Z-200 and Z-207. It is a response to a severe external stimulus, according to the report. By the time he emerges from behind the road sign at Z-225 it is clear he has been shot.
3) Third shot fired at Z-210 and impact on the President's head at Z-212.
But I think Tague testified that he was hit in the face with a bullet fragment or pieces of concrete after the second shot.
And I fail to understand how the assassin could have missed not only the President and the limousine but the entire street with his first and easiest shot (closest in range).