I dont, but here is something interesting I found. It is about his last evening (credit goes to h4le-bopp), also sorry for being to long:
RS got visited by his close friend B. RS agreed with him that he will come to the informal commencement after 26.04.2002. During his questioning by the commission, B stated that RS did not say anything, behaved like he always did and nothing had pointed towards problems of any kind. He would have watched TV with RS; “the Simpsons” and other things that were aired but no Videos. (The mother’s statement during her interrogation fits this- she stated that the evening before 26.04.2002, Robert had seemed normal. A friend had been over, from whom she had only seen his shoes. She had heard both talking and laughing. Robert would have been a bit grumpy, when she had told him not to go to bed too late.)
Around 20:30 (8:30pm) he and RS would have been went to Luisenpark with beer from his stock. They would have sat in the park and talked. Around 22:30 (10:30pm) RS would have said that they should go since he would have a test tomorrow. RS would have said goodbye with the words “Bye, ‘till tomorrow”.
Nothing would have indicated that they would not see each other again or that something special was going to happen.