Marina Prusakova was born in Molotovsk on July 17, 1941. She lived with her mother and stepfather until 1957 when she moved to Minsk where she lived with her uncle, Ilya Prusakova, who worked at the Ministry of Internal Affairs (MVD).
Marina worked as a pharmacy worker in a local hospital and in February, 1959, met Lee Harvey Oswald at the city dance hall. Six weeks later the couple got married. The following year the couple had a daughter.
The Oswald family settled in Fort Worth, Texas. Later the family lived in Dallas and New Orleans. Oswald also became active in left-wing politics and joined the Fair Play for Cuba Committee. Marina later claimed that on 12th April, 1963, Oswald attempted to assassinate General Edwin Walker, a right-wing political leader. She reported that she "asked him what happened, and he said that he just tried to shoot General Walker. I asked him who General Walker was. I mean how dare you to go and claim somebody's life, and he said "Well, what would you say if somebody got rid of Hitler at the right time? So if you don't know about General Walker, how can you speak up on his behalf?." Because he told me... he was something equal to what he called him a fascist."
In September, 1963, Marina Oswald moved to Dallas to have her second child. Lee Harvey Oswald apparently traveled to Mexico City where he visited the Cuban Embassy and attempted to get permission to travel to Cuba. His application was turned down and after trying to get a visa for the Soviet Union he arrived in Dallas in October, 1963. Marina and June were living with a woman called Ruth Paine. Oswald rented a room in Dallas and with the help of Paine, he found a job at the Texas School Book Depository.
On 22nd November, 1963, President John F. Kennedy arrived in Dallas. It was decided that Kennedy and his party, including his wife, Jacqueline Kennedy, Vice President Lyndon B. Johnson, Governor John Connally and Senator Ralph Yarborough, would travel in a procession of cars through the business district of Dallas. A pilot car and several motorcycles rode ahead of the presidential limousine. As well as Kennedy the limousine included his wife, John Connally, his wife Nellie, Roy Kellerman, head of the Secret Service at the White House and the driver, William Greer. The next car carried eight Secret Service Agents. This was followed by a car containing Lyndon Johnson and Ralph Yarborough.
At about 12.30 p.m. the presidential limousine entered Elm Street. Soon afterwards shots rang out. John F. Kennedy was hit by bullets that hit him in the head and the left shoulder. Another bullet hit John Connally in the back. Ten seconds after the first shots had been fired the president's car accelerated off at high speed towards Parkland Memorial Hospital. Both men were carried into separate emergency rooms. Connally had wounds to his back, chest, wrist and thigh. Kennedy's injuries were far more serious. He had a massive wound to the head and at 1 p.m. he was declared dead.
Witnesses at the scene of the assassination claimed they had seen shots being fired from behind a wooden fence on the Grassy Knoll and from the Texas School Book Depository. The police investigated these claims and during a search of the Texas School Book Depository they discovered on the floor by one of the sixth floor windows, three empty cartridge cases. They also found a Mannlicher-Carcano rifle hidden beneath some boxes.
Lee Harvey Oswald was seen in the Texas School Book Depository before (11.55 a.m.) and just after (12.31 p.m.) the shooting of John F. Kennedy. At 12.33 Oswald was seen leaving the building and by 1.00 p.m arrived at his lodgings. His landlady, Earlene Roberts, later reported that soon afterwards a police car drew up outside the house and sounded the horn twice and moved on. Roberts claimed that Oswald now left the building.
At 1.16 p.m. J. D. Tippet, a Dallas policeman, approached a man, later identified as Oswald, walking along East 10th Street. A witness later testified that after a short conversation Oswald pulled out a hand gun and fired a number of shots at Tippet. Oswald run off leaving the dying Tippet on the ground.
Twenty minutes later, Johnny Brewer, a manager of a shoe shop, saw a man (Oswald) who appeared to be hiding from passing police cars. He called the police after he saw the man enter a cinema. When the police arrived Brewer accompanied the officers into the cinema where he pointed out the man he had seen acting in a suspicious manner. After a brief struggle Oswald was arrested.
The police soon found out that Lee Harvey Oswald worked at the Texas Book Depository. They also discovered his palm print on the Mannlicher-Carcano rifle that was found earlier that day. Other evidence emerged that suggested that Oswald had been involved in the killing of John F. Kennedy. Oswald's hand prints were found on the book cartons and the brown paper bag. Charles Givens, a fellow worker, testified that he saw Oswald on the sixth floor at 11.55 a.m. Another witness, Howard Brennan, claimed he saw Oswald holding a rifle at the sixth floor window.
The police also discovered that the Mannlicher-Carcano rifle was purchased under the name A. Hiddell. When he was arrested, the police found that Oswald was carrying a forged identity card bearing the name Alek Hiddell. The rifle had been sent by the mail order company from Chicago to P.O. Box 2915, Dallas, Texas. The Post Office box belonged to Oswald.
While being interrogated by the Dallas Police, Oswald denied he had been involved in the killing of Kennedy. He claimed that he was a "patsy" (a term used by the Mafia to describe someone set up to take the punishment for a crime they did not commit).
On 24th November, 1963, the Dallas Police decided to transfer to Lee Harvey Oswald to the county jail. As Oswald was led through the basement of police headquarters a man rushed forward and shot him in the stomach. The gunman was quickly arrested by police officers. Lee Harvey Oswald died soon afterwards. The man who killed him was later identified as being Jack Ruby.
After the assassination of John F. Kennedy Marina was taken by the Federal Bureau of Investigation and kept at the Inn of the Six Flags Hotel. Threatened with deportation, she agreed to give the authorities all the information she had. Some of this was information was later used by the Warren Commission to suggest that her husband was the lone assassin.
In 1965 Marina married Dallas carpenter, Kenneth Porter and went to live in Richardson, Texas with her two daughters and her new husband. Later she gave birth to a son.
After the assassination of John F. Kennedy, the journalist Priscilla Johnson befriended Marina Oswald, and the two spent considerable time together. According to Johnson, she spent thirteen years researching Marina and Lee, before it was published in 1977.
At first Marina accepted the truth of the Warren Commission but over the years she has began to question the role her husband played in the killing of John F. Kennedy. She was especially influenced by the House Select Committee on Assassinations report published in 1979.
In an interview she gave to the Ladies Home Journal in September 1988 she argued: ''I'm not saying that Lee is innocent, that he didn't know about the conspiracy or was not a part of it, but I am saying he's not necessarily guilty of murder. At first, I thought that Jack Ruby (who killed Oswald two days after the assassination) was swayed by passion; all of America was grieving. But later, we found that he had connections with the underworld. Now, I think Lee was killed to keep his mouth shut.''
Marina added: '' I believe he worked for the American government... He was taught the Russian language when he was in the military. Do you think that is usual, that an ordinary soldier is taught Russian? Also, he got in and out of Russia quite easily, and he got me out quite easily.''
Marina later remarried and became known as Marina Oswald Porter. In the 1990s she became involved in a campaign to clear the name if her former husband. In April 1996 she wrote that : "At the time of the assassination of this great president whom I loved, I was misled by the "evidence" presented to me by government authorities and I assisted in the conviction of Lee Harvey Oswald as the assassin. From the new information now available, I am now convinced that he was an FBI informant and believe that he did not kill President Kennedy."