Interesting fact about George Harrison: he had hired new groundskeeping staff a week before he was stabbed and nearly killed by a crazed fan (in 1999) and, as he was being carried away, he saw one of the new staff he had hired and quipped "So, how do you like the job so far?" Also, his wife Olivia (his second--he was married and divorced from Pattie Boyd, but that's another story), after he had been stabbed, managed to beat the shit out of the intruder with a fireplace poker, which prompted Tom Petty to send George a card saying "Aren't you glad you married a Mexican girl?"
Getting back on topic, I wonder what kind of conspiracy theories are going to be around Paul and Linda's deaths; George Harrison probably starts writing a tribute song similar to "All Those Years Ago", IMO, though it won't be the same, and gets John and Ringo to sing on it. And Lorne will never make his famous check offer to John and Paul to reunite (or, if he does, it'll be John and George or John and Ringo).
And Paul's death will lead to his reputation being better posthumously, as well, just like what happened with Lennon in OTL...