J. Thomas Shipp (March 1, 1911 – August 7, 1930) and Abraham S. Smith (October 14, 1910 – August 7, 1930) were two young African-American men who were murdered in a spectacle lynching by a group of thousands on August 7, 1930, in Marion, Indiana. They were kidnapped from their jail cells, beaten, and hanged from a tree in the county courthouse square. They had been arrested that night as suspects in the attack of a white couple. They were accused of robbing and murdering a white man and raping his girlfriend. A third African-American suspect, 16-year-old James Cameron, was also arrested and taken by the mob, but narrowly escaped the same fate. Just before he was going to be lynched, an unknown woman in the crowd claimed he was innocent, after which the mob returned him to the jail.

In his memoirs, Cameron stated that Shipp and Smith had committed the murder, albeit the version of events were different from what the mob claimed. Cameron admitted to initially participating in the robbery under peer pressure, but said he got cold feet and ran away upon recognizing the man, who was a friend. Cameron said he then heard Shipp and Smith shoot and kill the man as he fled. In addition, the accusations of rape were false and amounted to rumors. A charge for rape against Cameron was dropped after Ball said she had not been raped.

The local chapter of the NAACP had tried, unsuccessfully, to evacuate the suspects from town to avoid the mob violence. The NAACP and the state's attorney general pressed to indict leaders of the lynch mob, but, as was typical in lynchings, no one was ever charged for their deaths, nor for the attack on Cameron.

Cameron was convicted of being an accessory to murder before the fact and served four years in prison. Afterwards, he pursued work and an education. After dedicating his life to civil rights activism, Cameron was pardoned by the state of Indiana in 1991.

The three suspects had been arrested the night before, charged with robbing and murdering a white factory worker, Claude Deeter, and raping his girlfriend, Mary Ball, who was with him at the time.

A large crowd broke into the jail with sledgehammers, pulled out the three suspects, beating them and hanging them. When Abram Smith tried to free himself from the noose as his body was hauled up, he was lowered and men broke his arms to prevent such efforts. Police officers in the crowd cooperated in the lynching. A third person, 16-year-old James Cameron, narrowly escaped death thanks to an unidentified woman who said that the youth had nothing to do with the rape or murder.

A local studio photographer, Lawrence Beitler, took a photograph of the dead men hanging from a tree surrounded by the large lynch mob; the crowd was estimated at 5,000 and included women and children. He sold thousands of copies of the photograph in the next ten days.

According to Cameron's 1982 memoir, the police had originally accused all three men of murder and rape. After the lynchings, and Mary Ball's testimony, the rape charge was dropped against Cameron.