Question: Who was the lawyer who investigated multiple scandals, including one sometimes called Travelgate?

Context paragraphs:
Master of the Berswordt Altar: The Master of the Berswordt Altar (sometimes called the Master of the Crucifixion in the Marienkirche at Dortmund) was a German painter, active in the area around Dortmund during the 14th and 15th centuries.  A number of works around Westphalia, including one in Bielefeld, are attributed to him.  His altar is in the Marienkirche, Dortmund.

John W. Daniel: John Warwick Daniel (September 5, 1842June 29, 1910) was an American lawyer, author, and Democratic politician from Lynchburg, Virginia who promoted the Lost Cause of the Confederacy.  Daniel served in both houses of the Virginia General Assembly, then represented Virginia in both the U.S. House and then multiple terms in the U.S. Senate.  Daniel was sometimes called the "Lame Lion of Lynchburg", alluding to his permanent disability incurred during the Battle of the Wilderness, while serving as a major in the Confederate Army.

Judas's belt: A Judas's belt, sometimes called Judah's belt, is a type of firecracker that produces multiple explosions. Named after Judas Iscariot, the belt consists of a string of small triangular or tubular shaped firecrackers approximately totaling up to one hundred or more and a bigger firecracker in the end.  A longer version of the firecracker belt is sometimes called sawa, the Tagalog word for python.

Tiospirone: Tiospirone (BMY-13,859), also sometimes called tiaspirone or tiosperone, is an atypical antipsychotic of the azapirone class.  It was investigated as a treatment for schizophrenia in the late 1980s and was found to have an effectiveness equivalent to those of typical antipsychotics in clinical trials but without causing extrapyramidal side effects. However, development was halted and it was not marketed.  Perospirone, another azapirone derivative with antipsychotic properties, was synthesized and assayed several years after tiospirone.  It was found to be both more potent and more selective in comparison and was commercialized instead.

Greene–Jones War: The Greene–Jones War was an ongoing Appalachian Mountain clan feud in the United States reputed to be second only to that of the Hatfield-McCoy feud in scale, duration, and number of persons killed.  At least sixteen people, including one child, were killed during the course of the feud, and many others were seriously injured.  The feud took place primarily in the border areas of Hawkins County (formerly part of Sullivan County, North Carolina, one of the earliest Tennessee counties and said to have a large Melungeon population), Washington County, Claiborne County, Hancock County, Tennessee (created when Hawkins County, Tennessee was subdivided), and Lee County, Virginia, not far from Cumberland Gap, the narrow Appalachian Mountain pass sometimes called The Wilderness Road leading into Kentucky.

White House travel office controversy: The White House travel office controversy, sometimes referred to as Travelgate, was the first major ethics controversy of the Clinton administration.  It began in May 1993, when seven employees of the White House Travel Office were fired.  This action was unusual because although theoretically staff employees serve at the pleasure of the President and could be dismissed without cause, in practice, such employees usually remain in their posts for many years.

Uijeongbu scandal: The Uijeongbu Yi Sun-ho lawyer scandal was a 1997 judicial scandal in Uijeongbu, Gyeonggi-do, South Korea.  For the first time in South Korean judicial history, prosecutors investigated a large number of sitting judges; they found that fifteen District Court judges had received millions of won in payments from attorneys.  In the end the judges were not indicted because prosecutors believed the money had no direct connection with their legal duties.  However, judges who received sums greater than one million won were obliged to resign, while those who received smaller amounts suffered demotion or disciplinary measures.  Along with a 1998 bribery scandal in Daejeon, the Uijeongbu scandal was one of the motivations behind a law, finally passed by the National Assembly in 2000, which attempted to address the issue of special treatment shown to judges who retired to become lawyers in private practise.  The scandals also lead to a revision of the code of judicial ethics banning cash thank-you gifts.

Robert Ray (prosecutor): Robert William Ray (born April 4, 1960) is an American lawyer practicing in the New York office of the Dallas-based law firm of Thompson & Knight, LLP.  As the successor to Ken Starr as the head of the Office of the Independent Counsel (1999 to 2002) he investigated and issued the final reports on the Whitewater scandal, the White House travel office controversy, and the White House FBI files controversy.  Before that he was Deputy Independent Counsel investigating former Secretary of Agriculture Mike Espy and before that Assistant United States Attorney for the Southern District of New York.

Olan Montgomery: Olan Montgomery, sometimes called only Olan, is an identical twin and American pop-artist and actor notable for his pop-art portraits of both celebrities and unknown people, and for his depictions of the Gay party scene.  He employs several techniques including one where transfers his own photographs to canvas, in order to embue photographic portraits with color. " Village Voice" art critic Michael Musto described the artist as "upping the subculture".

Logic maze: Logic mazes, sometimes called 'mazes with rules', are logic puzzles with all the aspects of a tour puzzle that fall outside of the scope of a typical maze.  These mazes have special rules, sometimes including multiple states of the maze or navigator.  Popular logic mazes include tilt mazes and other novel designs which usually increase the complexity of the maze, sometimes to the point that the maze has to be designed by a program to eliminate multiple paths.  Additional examples include:

Supporting paragraphs: Robert Ray (prosecutor) White House travel office controversy
Answer: Robert William Ray