Edward McGuckin is an American professional wrestler, better known by the ring name Jigsaw. He is best known for his work on the independent circuit for promotions such as Chikara, Combat Zone Wrestling, Dragon Gate USA, Full Impact Pro, and Ring of Honor and has also made appearances for Total Nonstop Action Wrestling (TNA), where he worked under the ring name Rubix. He is currently working most notably in the United Kingdom, where he predominantly appears for HOPE Wrestling.