sid ahmed ghlam had shot himself in the leg before his arrest by anti-terrorist officers in the 13th arrondissement in southern paris on sunday .
sunday 's arrest came just hours after the murder of aurelie chatelain , a 33-year-old mother and fitness instructor , who was riddled with bullets as she sat in her car in a car park in the paris suburb of villejuif .
investigators reportedly claim dna tests reportedly link the arrested man to the murder of ms chatelain .