Benedikt Zacher is a bioinformatics student in 10th semester (or 3nd Master semester).
Their solution to the second task can be found here.
Their solution to the third task can be found here.
The disease talk was given about Metachromatic leukodystrophy.
Download: Talk on Metachromatic Leukodystrophy
The specialist talk was about the topic Homology Modeling.