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(CNN) -- Belgian police are now confident that a shooter who killed three people at the Jewish Museum of Belgium was carrying a camera to record the attack, a senior Belgian law enforcement official told CNN Tuesday. Initial analysis of the surveillance footage from Saturday's attack in Brussels had not conclusively shown he was carrying a video camera. However, the police still do not have leads on the identity or the whereabouts of the shooter, nor on the gunman's specific motivation or ideological background, the official said. The official told CNN that investigators do not believe the attack was a "hit" targeting an Israeli couple who were two of those killed.

There has been media speculation in the past several days in
Israeli and Belgium that the couple had ties to Israeli intelligence agencies.