Chemistry whiz busted for injecting toxins under neighbor’s door had Steve Jobs quote on wall

The Florida chemistry student charged with injecting poison underneath his neighbor’s front door wrote a lengthy quote from late Apple founder Steve Jobs on the wall of his apartment — which is now up for rent.

Xuming Li, who faces a slew of felonies for polluting Umar Abdullah’s residence with a toxic opioid mix and sickening his family, was forced to vacate the condo and has since put the two-bedroom Tampa home on the market for $2,050.

A picture from the listing shows an orange wall covered in choice words of wisdom from the tech legend.

“Don’t let the noise of other’s opinions drown out your own inner voice,” reads a portion of the six-line quote. “And most important, have the courage to follow your heart and intuition.”

Abdullah told The Post Thursday that he’s still reeling from the ordeal that left his entire family — including an infant daughter — mysteriously ill for long periods.

On multiple occasions, Li squirted a noxious brew of methadone and hydrocodone into a crevice underneath Abdullah’s door after they squabbled for months over noise complaints.

“I’m looking to move to a townhouse,” Abdullah said. “I will never live in another apartment. I know that maybe this person was the only person in the world who would ever do something like this. But the fear is in our hearts now.”

Abdullah said Li’s alleged crimes were especially shocking because he was so hospitable after they first moved in directly above him in June 2022.

Abdullah passingly mentioned to Li that he was waiting for his internet service to activate — and he happily gave him his Wi-Fi password to use in the meantime.

The budding scientist — who lived with his own wife and two small kids — also gifted the Abdullahs a dress to mark the birth of their daughter.

“That’s why all of this was so surprising,” Abdullah said. “I just didn’t understand it.”

The relationship started to sour after Li began sending Abdullah text messages complaining about noise from their apartment soon after his daughter’s arrival.

The initial salvo — attached to the end of a congratulatory note about the baby — was gentle enough.

“By the way, could you please walk slower and not move furnitures after 11 pm?” Li asked. “The big sound always wakes us up.”

Abdullah, a tech professional originally from Bangladesh, said he was mildly surprised by the message because his family wasn’t especially loud.

But Li’s grousing grew so frequent that Abdullah organized a simulation to see just how disruptive his clan’s movements were to his downstairs neighbors.

While his wife remained upstairs in their apartment, Abdullah and a condo official met with Li in his residence to listen for any offending sounds.

Abdullah said he instructed his spouse to make every movement imaginable, from walking and moving chairs to jumping up and down.

“We couldn’t hear anything,” he recalled. “The landlord said he didn’t either. There was barely any noise. I think the neighbor was embarrassed.”

But the feud persisted, with Li later buying a decibel-reading device and attempting to capture unreasonable hikes in sound.

“Again, there was barely anything,” Abdullah said.

Months later, the family suddenly began experiencing mysterious bouts of severe nausea and dizziness.

In the midst of their illnesses, Li sent yet another text asking the Abdullahs to quiet down.

“Can you walk softer?” he wrote. “We couldn’t sleep last night.”

Abdullah wrote back and noted his family’s plight.

“Sorry to hear that,” he responded. “My house is full of eye burning gas from the water heater. I was hurriedly opening my windows and doors and that was causing panic footsteps probably.”

Li — who would soon be charged for pumping that substance into his neighbor’s home — replied tersely.

“I heard it from your landlord,” he said. “Sorry to hear your situation.”

Two days later, as Abdullah frantically tried to discover why his family was falling sick, Li resumed his objections to their noise output.

“Could you please walk slower?” he asked.

Finally, Abdullah set up a hidden camera that captured Li crouching down and emptying a syringe full of chemicals underneath his front door.

Li was arrested, evicted from his apartment, and expelled from the University of Southern Florida last week.

He is due back in court on Dec. 5.