Greer states that there were no fingerprints found on the gun following the attempt on Crowley's life. The shooter, Frank Devon, carries the gun in his bare hand. There should be plenty of prints.
At the end Greer is walking down the beach with Linc to his left and then Julie and Pete to his right. The next shot shows Linc at Greer's right while Julie and Pete are now to the Captain's left.
The photograph of Carl Wyatt that Link shows Pete at 40:30 is taken from a scene that occurs a full minute later.