What: "I'm still not sure what the object is, jet or missile or for that matter, something else."
Where: "He said there were details in the video that had not been shown on TV or online, such as how at one point the contrail lined up parallel with the LA harbor jetty, which was how he was certain of the location of the contrail when he first spotted it." And, of course he has also been quoted as saying "The onboard camera showed a plume twisting up from the horizon and narrowing as it climbed into the sky near Catalina Island, about 35 miles west of Los Angeles, he said."
But since we have actual stills from the video he shot, we don't have to rely solely on his memory. They are obviously going to be more accurate anyway. I've posted it before, but here it is again...
That is a still taken from his video with some easily identifiable geographic references and the contrail. You can go with his pictures and what he says...or a media graphic that goes against both.
Finally, UPS902 didn't fly over Catalina Island until roughly 5:30 and it was descending through FL290 from its original altitude of FL390. A. that was after he was filming, B. It is extremely doubtful the con layer was 10,000 feet thick. Conversely, UPS902 was almost exactly at the intersection of lines plotted from Leyvas' position to the contrail he filmed (in the posted picture) and the Cargo Law camera at LAX, at exactly the time stamp of the LAX camera. If you want to use Occam's Razor, you can do the simple math and agree that two lines of sight and a time stamp that correlate to the known position of a known object equal that known object, orrrr, you can ignore Occam's Razor and create a theory involving an unknown sub, firing an unknown missile, from an unknown location, at an unknown target for unknown reasons based solely on 14 seconds of zoomed in video edited from 10 minutes of actual video, and presented by a local television affiliate during sweeps week.