Amateur video obtained shows the immediate aftermath of the Copenhagen café shooting on 14 February in which one person was killed and three were injured.
People had gathered at the café for an event entitled "Art, Blasphemy and Freedom of Expression".
The main speaker was Swedish artist Lars Vilks, who has received death threats for depicting the Prophet Mohammad. Vilks was unhurt in the attack.
Also attending the event was French ambassador Francois Zimeray.
At the event Zimeray had praised Denmark's support for freedom of speech following the assault in Paris in January on the offices of satirical weekly newspaper Charlie Hebdo.
Witnesses said the envoy had barely finished his introduction when up to 40 shots rang out, outside the venue, as an attacker sprayed the cafe's windows with bullets.
Security experts said they considered Vilks to have been the target.
The gunman then moved on to a nearby synagogue where the guard, protecting a young girl's confirmation ceremony, was gunned down.
Danish police launched a massive manhunt, and on Sunday (15 February) morning they shot dead the 22-year-old Danish-born gunman near a train station in Norrebro, an area in Copenhagen not far from the sites of the two attacks.
Danish media widely reported the gunman to be Omar Abdel Hamid el-Hussein.