Am I one of very few still interested in this subject?

Anyway, happiness is a new book on the subject and it arrived today: "My Life Story, from Archduke to Grocer" by Leopold Wolfling (ex-Archduke Leopold of Tuscany).
So what finally happened between the 'the gravedigger of the Monarchy' as Rudolf referred to his uncle, the Archduke Albrecht, Colonel-in-Chief of the Roll Commando Execution Squad, and Emperor Franz Joseph? Did FJ suspect what might have happened? Could FJ have been partly guilty by sin of omission? Although almost completely blind, Albrecht remained Inspector General until his death in 1895 at the age of 78. Over a thousand officers attended his State funeral, and the Emperor issued an Order of the Day describing him as the 'ornament and pride' of the army. However, Archduke Albrecht did have the humiliating experience on 1893 of having to preside when a military commission, set up by Franz Joseph, re-examined Rudolf's drill book and found it so good that it was introduced into the Austrian Army training and used until the Emperor's death in 1916. Prime Minister Taaffe also resigned in 1893 and died in 1895.
Was Emperor Franz Joseph so ruthless and hard-hearted that he would allow his own son to be murdered as suggested by the activities of those closest to him in policy/decision making, or was this information carefully hidden from him? If it was hidden from him, then why would FJ have agreed to close the investigation into Rudolf's death after less than one day? Would he not want to know the truth like any normal father? Or did he know the truth and for whatever reason, thought silence was best? No matter how many pictures I see of FJ, he always looks like a kind person and incapable of being cold and ruthless to the point he would allow his son to be killed.
Rudolph: The Tragedy Of Mayerling by Carl Lonyay made claims that the Camarilla could run circles around Franz Joseph who was uneducated and not very intelligent. They made a point of keeping FJ so busy with busy work that he would have no time to interfere in important decisions of running the country. They gave him piles and piles of papers every day and asked him to make notes of what he thought was important and then to make sure they were properly filed away (and ignored), and the obsessive bureaucrat in the Emperor loved this type of "work". His other main occupation was designing uniforms for the military and the micro-management of all his extended relatives, who were also almost all kept out of any important or meaningful activity. This doesn't seem that unbelievable when comparing the general countenance of Franz Joseph to that of some of his ~contemporaries:

However, some hints can be seen regarding the true feelings of Franz Joseph, not only in his insistence that his son's military drills were put into use over the objection of his advisors, but also in his effective block in preventing Cardinal Rompello from becoming pope. Cardinal Rompello was on his favorite moral hobby horse soon after the death of Rudolf -- making every effort to prevent Rudolf from having a Christian burial, and clearly, FJ never forgot or forgave this.
In addition I've often wondered if the unforgiving response of FJ to the assassination of his next heir (Franz Ferdinand) was not a delayed reaction to what he wished he could have done following the death of his own son. When Franz Ferdinand was killed, Austria immediately made extreme demands on Serbia, and surprisingly, Serbia agreed to all the demands, but then the Austrian government shocked the world by declaring war on Serbia anyway, and so started WWI.
Another surprising twist to the story, also inspired by Franz Joseph I suspect, is the rumor that it was French Prime Minister Georges Clemenceau who had Rudolf murdered. This claim came through Empress Zita apparently through Rudolf's sister Gisele. It's hard to imagine they would make this claim without the approval or knowledge of the Emperor, and it's even harder to imagine there's any truth to it since Rudolf was quite pro-French alliance. It makes no sense unless it was some red herring used to further confound and bury the tragedy in a mass of confusion.
Franz Joseph died before history found his son to be dissipated, dissolute, immoral, corrupt and weak but powerfully insane. I'd like to believe that if FJ knew this is how history would judge his son, he would have made some effort to get a better story accepted, and it might have been more truthful, even if that truth was worse for someone else.