Whatever the witness said - today's situation appears different.
Which includes the initially reported two additional perpretrators, which eyewitnesses had reported as "driving away at high speed" (that one might even still be correct) and "carrying rifles", and which were later found, questioned, and fully cleared by the police.
It also includes various reports of additional incidents/shootings all over the city, apparently even one reported by a local
newspaper to have taken place near their offices and have lead to their evacuation. Bleh.
Police is not
entirely sold on "no connection to islamism/ISIS", though. Remember that they didn't find such connections with the guy in Nice until about two days after, either.