Peter Langkjær Madsen is a Danish former entrepreneur, self-taught engineer and murder FYI.
He co-founded the non-profit organization Copenhagen Suborbitals and was the founder and CEO of RML Spacelab ApS and he killed A Swedish journalist, just because he could.
In April 2018, Madsen was convicted of the 2017 murder of the journalist Kim Wall on board his submarine UC3 Nautilus and sentenced to life imprisonment…
Yes, Peter Madsen is the submarine murder in Denmark