As someone who is involved in the design and building of UAVs, this is an extremely bad idea on many levels. The day there is a "zero pilot cockpit" is the day I will stop flying as pax. It is, in my opinion, impossible to currently write software that will do the same job as a competent pilot.
I don't think anyone suggested this.
What I envision (and I sincerely hope to be proven wrong), are airlines controlled remotely by ATC. A human on the ground in a control room will be at the controls, not a computer.
Unless someone can smuggle a weapon or bomb onboard, nobody will ever be able to hijack a plane anymore.
If this is really a suicide, the case for pilotless cockpits just got much more stronger.