Complex sentence: As Briscoe and Green investigate, they discover "Tenofsky" was an assumed identity for the victim, who was a poor student and never graduated from Brooklyn Law School; his social security number and other items of identification are bogus.
Split into simpler sentences: As Briscoe and Green investigate, they discover Tenofsky was a poor student and never graduated from Brooklyn Law School. But further investigation reveals'Tenofsky' was an assumed identity for the victim; his social security number and other items of identification are bogus.