What is the relationship between Turing Pharmaceuticals and Martin Shkreli in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

News (Other OTC: NWSAL - news ) headlines proclaimed Turing Pharmaceuticals CEO Martin Shkreli the "most hated man in America," and he soon vowed to roll back the price, but did not say by how much.

Answer: founded_by