The official theory poses too many problems, we are supposed to believe that Oswald got the job at the book depository so he could shoot Kennedy, but he had worked there for months, long before it was known the Kennedy was even coming to Dallas.
I don't know the procedure from those days, but now they don't really release much info on routes, maybe back then they did, since Oswald apparently did bring the rifle to work that day.
There was one item brought up in one of the TV documentaries about the assassination, there were no fingerprints found on the rifle, there was only one fingerprint found in the so called sniper's nest, that fingerprint wasn't identified at the time, but it has been run through the computerized system and came back to a crooked crony of LBJ's, this crony was convicted of another murder, he murdered a guy running against LBJ earlier in LBJ's political career, but had served his time and was out of prison when the Kennedy assassination took place, he did not work there and there was NO reason for his fingerprint to be in that place.
Jack Ruby repeatedly said he knew a lot more, but couldn't tell since he was incarcerated in Texas, but if he was moved to another state he would tell all, they never moved him, he died in prison in Texas.
The Warren Commission was a bad joke!
I don't know whether Oswald was alone or not, but it would seem to me that there must have been more people involved.