Radical Mutant Activist
Michael is an ex-military mutant (he served in a special mutants ops team). He has been operating as and anti-government pro-mutant activist (or terrorist). His latest job involved stealing data concerning experiments by the government on mutants.
One of his accomplices, Jade Arrow, also stole the metallic cylinder that held several vials and the names of about a dozen women with dates from over 30 years ago (the second to last one being Gumshoe’s mother).
He shot Lien Pasco to recover the flash drive that held the data they were contracted to steal.