Question: Mercer House was the scene of the shooting death of the assistant of this person who was tried four times for the same crime in which state?

Context paragraphs:
Gary Tyler: Gary Tyler (born July 1958), from St. Rose, Louisiana, is an African-American man who is a former prisoner at the Louisiana State Prison in Angola, Louisiana.  He was freed after 41 years in jail after being tried as an adult and convicted of first-degree murder at age 17 by an all-white jury; he received the mandatory death sentence for that crime, according to state law.  When he entered Louisiana State Prison (Angola), he was the youngest person on death row.  Many observers believe that Tyler was wrongfully convicted, as his trial and defense were seriously flawed.  He was imprisoned from 1975 until April 29, 2016.  He had been convicted of the October 7, 1974 shooting death of a 13-year-old white boy and wounding of another, on a day of violent protests by whites against black students at Destrehan High School in St. Charles Parish, Louisiana.  Although desegregation had started in 1968 at the school, racial tensions had increased during 1974.

Flatbush Riots: The Flatbush Riots occurred from March 11 to March 12 2013 in Flatbush, Brooklyn.  A candlelight vigil was held by the community in response to the police shooting death of 16 year old Kimani Gray, who allegedly pointed a .38 caliber pistol at the officers.  The demonstration turned violent, according to one attendee, due to disappointment that no public officials had attended the event.  At least one person was injured and a Rite Aid store was looted and damaged.  One person was arrested on charges of disorderly conduct.

Mercer House: Mercer House, Mercer Hall, and variations, may refer to:

Shooting of Antonio Martin: The shooting of Antonio Martin occurred on December 23, 2014, in Berkeley, Missouri, a suburb of St. Louis.  Martin, an 18-year-old black male, was fatally shot by a white Berkeley police officer when Martin pulled a gun on him.  The shooting sparked protests in the St. Louis area and other cities in the U.S.  The shooting elicited comparison to the earlier shooting death of Michael Brown two miles away in Ferguson, Missouri.

Debra Milke: Debra Jean Milke (née Sadeik; born March 10, 1964) is a German-American woman who spent over 25 years in prison in the state of Arizona.  She was one of three people sentenced to death for the December 2, 1989 shooting death of her four-year-old son, Christopher Conan Milke.  Her alleged conspirators were her roommate James Lynn Styers and his friend Roger Mark Scott.  Neither testifed against her and both agreed that she was not present at the shooting.  Scott implicated Milke as the mastermind while Styers said she had no involvement whatsoever.  They implicated each other as the actual shooter.  Who that was remains a subject of speculation.

We Who Are About to Die: We Who Are About to Die is a 1937 film.  It was based on a book by David Lansom, who was tried four times for murdering his wife before being set free.

Dr. Samuel D. Mercer House: The Dr. Samuel D. Mercer House was built in 1885 at 3920 Cuming Street in the historic Walnut Hill neighborhood of Omaha, Nebraska, United States.  Samuel Mercer was the chief surgeon of the Union Pacific Railroad, and the founder of Omaha's first hospital.

Trial of Yolanda Saldívar: State of Texas v. Yolanda Saldívar was a criminal trial held at the Harris County Courthouse in Houston, Texas.  The trial began with the jury's swearing-in on October 9, through opening statements on October 12, to a verdict on October 23, 1995.  Former nurse Yolanda Saldívar was tried on one count of first-degree murder after the shooting death of American Tejano music singer Selena on March 31, 1995, after which she held police and the FBI Crisis Negotiation Unit at bay for almost ten hours.  The case has been described as the most important trial for the Latino population and was compared to the O. J. Simpson murder trial by media outlets.  It was one of the most publicly followed trials in the history of the state of Texas.

James Arthur Williams: James Arthur "Jim" Williams (December 11, 1930 – January 14, 1990) was the only person in the state of Georgia ever to be tried four times for the same crime.  Following the May 2, 1981, shooting death of assistant Danny Lewis Hansford in his Savannah home, Mercer House, Williams was charged with murder and tried four times.  He was found not guilty at the final trial.

Mercer House (Savannah, Georgia): The Mercer House, now called the Mercer-Williams House Museum, is located at 429 Bull Street and stands at the southwestern end of Monterey Square, in Savannah, Georgia.  The house was the scene of the shooting death of Jim Williams' assistant, Danny Hansford, a story that is retold in the 1994 John Berendt book "Midnight in the Garden of Good and Evil".  The house is currently owned by Dorothy Kingery, Williams' sister, and is open to the public for tours.

Supporting paragraphs: Mercer House (Savannah, Georgia) James Arthur Williams
Answer: Georgia