Reichstag fire, 1933
Rare Historical Photos
http://rarehistoricalphotos.com/reichstag-fire-1933/

The responsibility for the Reichstag fire remains an ongoing topic of debate and research. According to Ian Kershaw, writing in 1998, the consensus of nearly all historians is that Van der Lubbe did set the Reichstag on fire. Although Van der Lubbe was certainly an arsonist and clearly played a role, there has been considerable popular and scientific debate over whether he acted alone; the case is still discussed.

Interesting fact:

The term “Reichstag fire” is used by some writers to denote a calamitous event staged by a political movement, orchestrated in a manner that casts blame on their opponents, thus causing the opponents to be viewed with suspicion by the general public. This is sometimes known as a false flag attack when the event itself is caused by proponents of a political movement to falsely accuse their opponents.

Var der Lubbe was beheaded by guillotine (the customary form of execution in Saxony at the time; it was by axe in the rest of Germany) on 10 January 1934, three days before his 25th birthday.