So, how the investigator could have been talking about the print on the index card is totally beyond me.
The words were written by reporters who were there. They need no explanation from me. You elected to try to twist them into something that fits what you believe. I have shown you your mistake of not keeping the context. Apparently a lot of things are beyond you.
The words were written by reporters who were there. Indeed, they wrote down what the investigators told them. And an investigator said they had Oswald's print. That was all he said.
You then turned it so that the investigator somehow was talking about the print on the index card, but you have no evidence for that, which is why you keep going on about the context when there actually is no context, since you can't even know for sure if the "informed sources" include the investigator who mentioned a print matching Oswald.
The first part;
Informed sources said the evidence "leaves little doubt" that the 24 year-old Communist sympathizer held the rifle which fired the lethal bullet as President Kennedy's motorcade neared the triple underpass. just expresses the opinion of "informed sources". They used the words "held the rifle" but they could just as easily have said "we are pretty sure Oswald did it"
The second part;
We've got a print that matches Oswald, one investigator said. is just a comment made by an investigator being reproduced.
A reader, ignorant of the facts, might combine the two remarks and conclude they are linked, and it could well be that the writer of the article intended just that, but such a conclusion, and thus your position, is complete BS, because it ignores that the FBI did not match Oswald to the print on the index card
until 5 days after the article was published. Unless he was psychic, there is no way the investigator who made the remark about the print could have known on the 24th that it was Oswald's print on the index card as that wasn't determined until the 29th. QED he couldn't have been talking about the print on the index card!
This is not rocket science so why don't you get it?