On August 23rd 1973, Jan-Erik Olsson entered the Sveriges Kreditbanken in Norrmalmstorg Square armed with a submachine gun and took three women and one man hostage, demanding the release of his friend Clark Olofsson from jail. In a strange turn of events, an unlikely friendship formed between the hostages and captors, in what was eventually dubbed the Norrmalmstorgssyndromet by Nils Bejerot and the "Stockholm Syndrome" by overseas media in the latter months of 1973 and early months of 1974. It is therefore ironical that the Symbionese Liberation Army would then mail a communication using a Scandinavian translation of the word "kill" (albeit strike) just one or two days before Patricia Campbell Hearst was to also be taken hostage. In an uncanny turn of events, her case too was argued to have exemplified the term "Stockholm Syndrome", as she formed a bond with her kidnappers and eventually 'assisted' them in the Hibernia Bank robbery on April 15th 1974, also armed with a high capacity weapon.
The definition of "Stockholm Syndrome" is a condition which causes hostages to develop a psychological alliance or friendship with their captors as a survival strategy during captivity. The S.L.A letter has the key ingredients of "a friend", a Scandinavian language and an impending hostage situation. The Symbionese Liberation Army would soon mail another letter demanding the release of two apprehended S.L.A members (Joseph Remiro and Russell Little), much like Jan-Erik Olsson successfully demanded the release of his friend, Clark Olofsson. Joseph Remiro and Russell Little had been arrested and charged with the murder of Marcus Foster who was gunned down with cyanide laden bullets on November 6th 1973 in Oakland. The following Symbionese Liberation Army communication contained all the key ingredients of threatening "to kill" Patricia Campbell Hearst if their demands were not met, akin to the S.L.A letter, while also highlighting the word "FRIEND". The comparison can be noted below.