How a lunatic ex-cop accused of killing an NYC jogger could get to work at a public school despite a robust background check

Trust, and don’t verify.City education officials maintain they did a “robust” background check on the psycho ex-cop who was working with Brooklyn elementary-school kids before and after he allegedly killed a jogger  —  making the assertion despite a string of deeply disturbing red flags showing otherwise.The Department of Education  told The Post that its applicants such as accused killer paraprofessional Sayed Mohassib, 27, are subject to “a robust background and review process for employment,” including “a fingerprint-supported background investigation to determine whether security clearance can be granted for the position thought.”DOE job-seekers  also  “must complete a detailed background questionnaire that includes questions about several topics, including but not limited to previous adverse employment, adverse military service and past criminal history.“Candidates must also certify that [the] answers they provide are truthful,‘’ the DOE said — failing to say whether the department actually checks that applicants are  being honest and how they vet answers.Prior to his stint at PS 200,  the accused killer lasted at the NYPD just six weeks in 2022 before he enlisted in the Marines — who swiftly booted him after a month because of psych issues.The NYPD then refused to take him back when he reapplied to the force — even calling an ambulance to cart him off to  Bellevue Hospital for a mental-health evaluation because of unhinged behavior, sources said.Cops were then called to Mohassib’s family home when he threatened to “chop up’’ his family in 2024 — the same year that city Department of Education records show he was working for the agency.Mohassib continued working for PS 200 up until the random murder of jogger Katie Suarez on Oct.30 — and even after, till cops were able to nab him Saturday.Either Mohassib’s DOE questionnaire falsely did not include his time with the Marines and NYPD — and was never caught b...