The suspect Fernando André Sabag Montiel (born 13 January 1987) is a 35-year old Brazilian from La Paternal, Buenos Aires, who has resided in Argentina since 1993.[24][25][26] He worked as an Uber driver.[27] On 17 March 2021, Montiel was arrested for possession of a 35-centimetre long knife in his vehicle during a traffic police inspection of the vehicle's missing rear license plate, and he was charged with carrying "non-conventional weapons".[28] The case was dropped by the prosecution as "it was not an important matter".[29]