Carl Austin Weiss Sr. (December 6, 1906 – September 8, 1935) was an American physician from Baton Rouge, Louisiana, who assassinated U.S. Senator Huey Long at the Louisiana State Capitol on September 8, 1935. Career Weiss was born in Baton Rouge to physician Carl Adam Weiss and the former Viola Maine. Weiss's father was a prominent ophthalmologist who had once treated Senator Long. His family was Catholic; his father was of German descent, and his mother had French and Irish ancestry. Weiss was educated in local schools and graduated from St. Vincent's Academy. He then obtained his bachelor's degree in 1925 from Louisiana State University in Baton Rouge. He did postgraduate work in Vienna, Austria, and briefly practiced at the American Hospital of Paris. Weiss thereafter was awarded internships in Vienna and at Bellevue Hospital in New York City. It was while in Europe that Weiss bought a FN Model 1910 pistol for $25 (equivalent to approximately $ in ) that he allegedly used in the Long assassination. In 1932, he returned to Baton Rouge to enter private practice with his father. He was president of the Louisiana Medical Society in 1933 and a member of the Kiwanis International. The Pavy-Opelousas connection In 1933, Weiss married Yvonne Louise Pavy (1908–1963) of Opelousas, the seat of St. Landry Parish. The couple had one son, Carl Austin Weiss Jr., who was born in 1934, shortly before his father's death, and he died August 2, 2019. Pavy was the daughter of Judge Benjamin Henry Pavy (1874–1943) and Ida Veazie (died 1941). The Pavy family was part of an anti-Long political faction. Judge Pavy's brother Felix Octave Pavy (1879–1962), a physician in Leonville and Opelousas, had run for lieutenant governor in 1928 on an intraparty ticket, and had been defeated by Paul N. Cyr, a Jeanerette dentist who was endorsed by Long. Similarly, Judge Pavy, Weiss's father-in-law, was the Sixteenth Judicial District Court state judge from St. Landry and Evangeline parishes. He did not seek reelection in 1936, after Long had the legislature gerrymander the seat to include a majority of pro-Long voters within a revised district. Murder of Huey Long On Sunday, September 8, 1935, Carl Weiss confronted and shot Huey Long in the Capitol building in Baton Rouge. At 9:20 p.m., just after passage of the bill effectively removing Judge Pavy, Weiss approached Long, and, according to the generally accepted version of