things jon missed while stalking his colleagues:
- the fact that sasha had been half lined up for gertrude's job and how that would be a pretty good murder motive
- the discrepancy between elias's hiring in 1991 and how he said he was working as a filing clerk in 1972
- tim's brother's mysterious disappearance/death directly preceding his change in careers
- martin's real age and literally any of his academic or employment history
conclusion: he's bad at this <3