A third‑grader's homework assignment turned out to be an unlikely crime-fighting tool, helping Allegheny County detectives identify and arrest a man accused of robbing a McKeesport credit union last Friday. Investigators say the suspect handed a teller a handwritten note, then revealed a rifle before leaving the branch, and the scrap of paper he used is what eventually steered officers to a Walnut Street home and to the arrest of Keith Graves Jr.
According to a criminal complaint provided to KDKA‑TV, detectives say the incident began at the Century Heritage Federal Credit Union in the Olympia Shopping Center, where a man first tried to open an account and later returned with a folded demand note and a rifle. After the robbery, police examined and tested the paper and determined the note had been written on a third‑grade "CKLA Spelling Practice, Unit 7, Week 1" worksheet used at Francis McClure Elementary. Investigators then checked the school's roster to trace the worksheet. That lead - a matching surname on the roster tied to a Walnut Street address - is what directed officers to the residence where they say they detained Keith Graves Jr., as reported by CBS Pittsburgh.
Employees told police the robber handed over the note, then "pulled a rifle," and later said, "I ain't [expletive] joking," according to the complaint. The teller and another employee emptied two cash drawers holding just under $2,300, and surveillance video showed the suspect leaving on a self‑propelled scooter. Allegheny County police say Keith Graves Jr. was taken into custody at the Walnut Street address and now faces multiple counts, including aggravated assault, robbery, recklessly endangering another person, simple assault, terroristic threats, and theft by unlawful taking, according to CBS Pittsburgh.
Small clues often crack 'note job' cases
Robberies in which suspects pass written demand notes, sometimes nicknamed "note jobs," often leave behind the very evidence that unravels the case, from fingerprints to distinctive paper. Leftover demand notes, starter checks, or even receipts can become the thread that ties a suspect to a scene, as The Washington Post has detailed in past cases.
What comes next
Police say the investigation remains active, and prosecutors will handle formal charges and any arraignment dates. For now, local authorities are crediting an everyday classroom worksheet with providing the clue detectives needed to make an arrest.
