Bart was flicking around, trying to find something to watch, when he saw Sideshow Bob's face appear on screen during a news report. Turning back to that channel, he was astonished at what was being reported:
"Kent Brockman here, live from Springfield Penitentiary, where at 3:00 this morning, Robert 'Sideshow Bob' Terwilliger was found dead in his solitary confinement cell. CSIs have commented that, quote - 'Bob was known to be unstable and due to the type of trauma we discovered upon his person, we do not believe any foul play is involved and it is likely that he accidentally killed himself during one of many psychotic meltdowns he's been reported by the guards to have had over the last few months.' - End quote. The remaining members of Bob's family, including his brother Cecil, his parents, his Italian wife, and his young son Gino, are still imprisoned, with the young Gino being eligible for parole or even possible release sometime within the next 30 to 40 years. On that note..."
Bart turned off the TV, his eyes going wider than they'd ever gone before.
"He's... He's gone? No more stressing about his next return to try and kill me?..." Bart whispered. A grin wider than a Cheshire Cat's crossed his face, as the reality of the situation set in.
"I'M FREEEEEEEEEEEEEEEEE!"
(Roughly 40 years later...)
Bart was spending time with his sons Kirk and Picard, the two teenagers helping him to restore the car that Homer had as a teen to its' former glory, while giving it a hover upgrade at the same time.
"Ya think grampa'll like seeing his old car again, despite not being able to actually drive it?" Kirk asked as he worked on the hover conversion. Bart, coming out from underneath the engine, smirked and wiped some grease off of his brow with an oily rag.
"Ay caramba, Kirk, he's gonna love it. Sure, he'll probably be a little pissed off that he can't drive it yet because of that suck-ass new law about having to be 9 years sober before being able to even APPLY for a new driver's license, but he'll really get a kick outta seein' this bad boy again."
Picard poked his head out from the driver's side of the car, having been upgrading the car's electronics.
"Yeah, but what's to stop him from taking this old clunker for a joyride? It's not exactly hard to get in and just hotwire it, you know." he asked, quirking an eyebrow. Bart smirked.
"Oh, nothing much apart from the fact that if he so much as touches the steering wheel, Gramma'll revoke his snuggling and junk food priveliges for the rest of this year and all of next year." he chuckled. Just then, the radio that had been playing the greatest hits of 2016 tuned into a news report.
"This is Clint Brockman, grandson of the infamous Kent Brockman, reporting for Springfield Radio 1. I'm coming to you live from the former farm home of the late Abraham Simpson, where multiple burning effigies of his grandson Bartholomew Jojo Simpson, have caused a massive blaze that destroyed the entire property. If you tune into Radio I-View, you'll see that the only clue to whomever set up this arson is spelled out using the now burnt out effigies."
Bart, swallowing hard, put on his I-View VR glasses, and gasped in horror at the message the burnt effigies had created:
"'I'M BACK, BART. BE AFRAID...'"
(Author's Note: The only name I've made up so far is that of Clint Brockman, as I looked up the names of Bart's sons and Bob's son on The Simpsons Wiki, so please don't go trying to correct me, 'kay?)