Complex sentence: He claims that Coop is'dirty' and was associated with Teddy Burkes, a drug dealer in his heyday during the 1960s, a lead that would ruin the reputation of Coop.
Split into simpler sentences: He claims that Coop is'dirty' and was associated with Teddy Burkes, a drug dealer in his heyday during the 1960s. It is a lead that would ruin the reputation of Coop.