Answer the question at the end by quoting:

Sylar (Gabriel Gray) is a fictional character and a primary antagonist of the NBC science fiction drama series Heroes. Portrayed by Zachary Quinto, he is a superpowered serial killer who targets other superhumans in order to steal their powers. He served as the primary villain of the first season and then as a recurring antagonist. Over the course of seasons two, three and four, the writers depicted Sylar attempting at various times and under different circumstances to become a hero or curb his desire to kill, undergoing relapses at various stages.
Meanwhile, Matt Parkman, regretting his actions, is haunted by Sylar, who claims to have lingered in Parkman's mind after Parkman "sucked" all his memories and replaced them with Nathan's. Though Parkman had resolved not to use his powers anymore, Sylar eventually tempts him into using them again. Following this, Sylar escalates his tormenting of Parkman, using his own telepathy against him to force Parkman to use his powers to save himself. Sylar then gives a defeated Parkman an ultimatum: either continue to live with Sylar in his mind or return Sylar's mind to his body.  Matt decides to keep Sylar in his mind, which begins to have consequences when Sylar's control over Matt advances, where Sylar has sex with Matt's wife Janice while Matt was asleep. Scared of what Sylar could do to his family (which Sylar himself alludes to), Matt tells Janice the truth, and Janice agrees to let Matt try to exorcise Sylar by leaving the house. During another conversation, Sylar appears pained whenever Parkman drinks alcohol, giving Parkman the idea to drink into a stupor. Sylar appears successfully removed as he fades from Matt's mind, and Matt remains conscious long enough to see his partner and Janice return. In actuality, Sylar simply tricked Parkman into knocking himself out. Now much more powerful, Sylar takes full control of Parkman's body, leaving Matt trapped in his own head. Despite his control over the body, Matt's personality constantly hampers Sylar from reaching his body, including letting Sylar be arrested and "withholding" Sylar's ability to use Matt's telepathy. In response, Sylar threatens to murder innocent civilians if Parkman doesn't cooperate. Faced with an ultimatum, Parkman attempts to commit suicide by cop.  The attempt appears to almost work, but "Nathan" and Peter arrive to revive Matt. Once revived, Matt is surprised to see Nathan and Peter, as is Sylar. Desperate to return to his original body, Sylar forcefully takes over Parkman's body, only needing to touch Nathan in order to jump back into his own body. While "Nathan's" confidence in who he is is shattered (Matt reveals that "Nathan" is Sylar), Sylar uses Parkman's telepathy to bring Nathan closer to him, with intuitive aptitude forcing Nathan to throw Peter telekinetically and proceed to get closer, to understand who he is. Although the event is temporarily stalled by an incoming guard, Nathan brushes hands with Matt, freeing him from Sylar's hold, and leaving Nathan fearful that Sylar will soon take over his body once more.

How does Parkman react to the haunting?

Matt decides to keep Sylar in his mind, which begins to have consequences when Sylar's control over Matt advances,

IN: Emiliano Zapata Salazar (Spanish pronunciation: [emi'ljano sa'pata]; 8 August 1879 - 10 April 1919) was a leading figure in the Mexican Revolution, the main leader of the peasant revolution in the state of Morelos, and the inspiration of the agrarian movement called Zapatismo. Zapata was born in the rural village of Anenecuilco in Morelos State, where peasant communities were under increasing pressure from the small landowning class who monopolized land and water resources for sugar cane production with the support of dictator Porfirio Diaz. Zapata early on participated in political movements against Diaz and the landowning hacendados, and when the Revolution broke out in 1910 he was positioned as a central leader of the peasant revolt in Morelos. Cooperating with a number of other peasant leaders he formed the Liberation Army of the South of which he soon became the undisputed leader.

Meanwhile, the disintegration of the revolution outside of Morelos put pressure on the Zapatistas. As General Arenas had turned over to the constitutionalists, he had secured peace for his region and he remained in control there. This suggested to many revolutionaries that perhaps the time had come to seek a peaceful conclusion to the struggle. A movement within the Zapatista ranks led by former General Vazquez and Zapata's erstwhile adviser and inspiration Otilio Montano moved against the Tlaltizapan headquarters demanding surrender to the Carrancistas. Reluctantly, Zapata had Montano tried for treason and executed (Womack 1983-86).  Zapata began looking for allies among the northern revolutionaries and the southern Felicistas, followers of the Liberalist Felix Diaz. He sent Gildardo Magana as an envoy to communicate with the Americans and other possible sources of support. In the fall of 1917 a force led by Gonzalez and the ex-Zapatista Sidronio Camacho, who had killed Zapata's brother Eufemio, moved into the eastern part of Morelos taking Cuautla, Zacualpan and Jonacatepec.  Zapata continued his work to try to unite with the national anti-Carrancista movement through the next year, and the constitutionalists did not make further advances. In the winter of 1918 a harsh cold and the onset of the Spanish flu decimated the population of Morelos, causing the loss of a quarter of the total population of the state, almost as many as had been lost to Huerta in 1914. (Womack 311). Furthermore, Zapata began to worry that by the end of the World War, the US would turn its attention to Mexico forcing the Zapatistas to either join the Carrancistas in a national defense or to acquiesce to foreign domination of Mexico. In December 1918 Carrancistas under Gonzalez undertook an offensive campaign taking most of the state of Morelos, and pushing Zapata to retreat. The main Zapatista headquarters were moved to Tochimilco, Puebla, although Tlaltizapan also continued to be under Zapatista control. Through Castro, Carranza issued offers to the main Zapatista generals to join the nationalist cause, with pardon. But apart from Manuel Palafox, who having fallen in disgrace among the Zapatistas had joined the Arenistas, none of the major generals did (Womack 313-14). Zapata emitted statements accusing Carranza of being secretly sympathetic to the Germans (Womack 315). In March Zapata finally emitted an open letter to Carranza urging him for the good of the fatherland to resign his leadership to Vazquez Gomez, by now the rallying point of the anti-constitutionalist movement (Womack 319-20). Having posed this formidable moral challenge to Carranza prior to the upcoming 1920 presidential elections, the Zapatista generals at Tochimilco, Magana and Ayaquica, urged Zapata not to take any risks and to lay low. But Zapata declined, considering that the respect of his troops depended on his active presence at the front (Womack 320-22).

Did Zapata give up at that point or do something else?

OUT:
low. But Zapata declined, considering that the respect of his troops depended on his active presence at the front (Womack 320-22).