What is Peter Madsen?
{{Infobox criminal | name = Peter Madsen | image = PeterMadsen clipportrait.png | caption = Madsen in November 2010 | birth_name = Peter Langkjær Madsen | birth_date = {{Birth date and age|df=yes|1971|01|12}} | birth_place = [[Copenhagen]], Denmark | charge =[[Murder]], indecent handling of a corpse, [[sexual assault]] | conviction_penalty = [[Life imprisonment in Denmark|Life imprisonment]] | conviction = Premeditated murder and sexual assault | occupation = {{flatlist| *[[Engineer]] *[[Entrepreneurship|Entrepreneur]] }} }} '''Peter Langkjær Madsen'''<ref>{{Cite news|url=http://www.francesoir.fr/actualites-monde/peter-madsen-inventeur-exalte-et-megalo|title=Peter Madsen, inventeur exalté et mégalo|date=24 August 2017|work=FranceSoir|access-date=24 August 2017|language=fr|archive-date=14 October 2017|archive-url=https://web.archive.org/web/20171014015323/http://www.francesoir.fr/actualites-monde/peter-madsen-inventeur-exalte-et-megalo|url-status=dead}}</ref> ({{IPA-da|ˈpeːˀdɐ ˈlɑŋkæɐ̯ ˈmæsn̩|lang}}; born 12 January 1971) is a Danish former [[Entrepreneurship|entrepreneur]] and self-taught engineer.<ref>{{cite web|url=http://www.abc.net.au/news/2018-04-25/peter-madsen-sentenced-to-life-for-murder/9694212|title=Danish inventor Peter Madsen sentenced to life in prison for murder of Swedish journalist Kim Wall|publisher=Associated Press|date=2018-04-25|access-date=2018-04-26}}</ref><ref>{{cite web|url=https://www.msn.com/en-ie/news/world/danish-engineer-peter-madsen-sentenced-to-life-for-murdering-journalist-kim-wall/ar-AAwjtuc|title=Danish engineer Peter Madsen sentenced to life for murdering journalist Kim Wall|publisher=The Guardian|date=2018-04-25|access-date=2018-04-26}}</ref> He co-founded the non-profit organization [[Copenhagen Suborbitals]] and was the founder and CEO of [[Rocket Madsen Space Lab|RML Spacelab ApS]].<ref name=uc3n20100209>{{Cite web |url= http://www.uc3nautilus.dk/ |title=UC3 Nautilus Homepage |work=uc3nautilus.dk |access-date=9 February 2010 |archive-url=htt