Germany faces 'political discussion' over how attack could happenpublished at 20:04 BST
Timo Lehmann, a correspondent for German news website Der Spiegel, tells the BBC that there will be a "political discussion" over the next few days, surrounding "what went wrong and how it could happen".
He says the suspect was "clearly on watch by the police, and still they couldn't stop what happened yesterday".
As a reminder, Abdul Ballout had been convicted and given a prison sentence that he had not yet served. Officials said a year ago he had tried to join the Islamic State group.
On the area of Berlin where the suspect was killed by police, Lehmann says Spandau is "far away from the city centre".
"We don't know where this man tried to hide himself this last 24 hours, but it's very good news that they found him."

Timo Lehmann speaks to the BBC from Berlin's Brandenburg Gate















