Answer the question at the end by quoting:

Christopher Houston Carson (December 24, 1809 - May 23, 1868), better known as Kit Carson, was an American frontiersman. He was a mountain man (fur trapper), wilderness guide, Indian agent, and U.S. Army officer. Carson became a frontier legend in his own lifetime via biographies and news articles. Exaggerated versions of his exploits were the subject of dime novels.
In 1845, Carson guided Fremont on their third and last expedition. They went to California and Oregon. Fremont made scientific plans, but the expedition appeared to be political in nature. Fremont may have been working under secret government orders. President Polk wanted the province of Alta California for the United States. Once in California, Fremont started to rouse the American settlers into a patriotic fever. The Mexican government ordered him to leave. Fremont went north to Oregon, though not before instigating the Sacramento River massacre, in which at least 150 Indians were killed in an unprovoked attack. The party moved up along the Sacramento River, continuing to kill Indians as they went, then camped near Klamath Lake. Messages from Washington, DC made it clear that President Polk wanted California.  At Klamath Lake in southern Oregon, Fremont's party was hit in a revenge attack by 15-20 Indians on the night of May 9, 1846. Two or three men in camp were killed. The attackers fled after a brief struggle. Carson was angry that his friends had been killed. He took an axe and avenged the death of his friends by chopping away at a dead Indian's face. Fremont wrote, "He knocked his head to pieces."  In retaliation for the attack, a few days later Fremont's party massacred a village of Klamath people along the Williamson River in the Klamath Lake massacre. The entire village was razed and at least 14 men, women and children were killed. There was no evidence that the village in question had anything to do with the previous attack.

How were his friends killed?

At Klamath Lake in southern Oregon, Fremont's party was hit in a revenge attack by 15-20 Indians on the night of May 9, 1846.

Some context: Vaslav Nijinsky (also Vatslav; Russian: Vatslav Fomich Nizhinskii; Russian: ['vatsl@f f@'mjitc njI'zinskjIj]; Polish: Waclaw Nizynski; 12 March 1889/1890 - 8 April 1950) was a ballet dancer and choreographer cited as the greatest male dancer of the early 20th century.
Nijinsky spent his summer after graduation rehearsing and then performing at Krasnoe Selo in a makeshift theatre with an audience mainly of army officers. These performances frequently included members of the Imperial family and other nobility, whose support and interest were essential to a career. Each dancer who performed before the Tsar received a gold watch inscribed with the Imperial Eagle. Buoyed by Nijinsky's salary, his new earnings from giving dance classes, and his sister Bronia's employment with the ballet company, the family moved to a larger flat on Torgovaya Ulitsa. The new season at the Mariinsky theatre began in September 1907, with Nijinsky employed as coryphee on a salary of 780 roubles per year.  He appeared with Sedova, Lydia Kyasht and Karsavina. Kchessinska partnered him in La Fille Mal Gardee, where he succeeded in an atypical role for him involving humour and flirtation. Designer Alexandre Benois proposed a ballet based upon Le Pavillon d'Armide, choreographed by Fokine to music by Nikolai Tcherepnin. Nijinsky had a minor role, but it allowed him to show off his technical abilities with leaps and pirouettes. The partnership of Fokine, Benois and Nijinsky was repeated throughout his career. Shortly after, he upstaged his own performance, appearing in the Bluebird pas de deux from the Sleeping Beauty, partnering Lydia Kyasht. The Mariinsky audience was deeply familiar with the piece, but exploded with enthusiasm for his performance and his appearing to fly, an effect he continued to have on audiences with the piece during his career.  In subsequent years, Nijinsky was given several soloist roles. In 1910, Mathilde Kschessinska selected Nijinsky to dance in a revival of Petipa's Le Talisman. Nijinsky created a sensation in the role of the Wind God Vayou.
What was he rehearsing?
A: These performances frequently included members of the Imperial family and other nobility,

IN: Florence and the Machine (stylised as Florence + the Machine) are an English indie rock band that formed in London in 2007, consisting of vocalist Florence Welch, keyboardist Isabella Summers, and a collaboration of other artists. The band's music received praise across the media, especially from the BBC, which played a large part in their rise to prominence by promoting Florence and the Machine as part of BBC Introducing. At the 2009 Brit Awards they received the Brit Awards "Critics' Choice" award. The band's music is renowned for its dramatic and eccentric production and also Welch's powerful vocal performances.

Florence and the Machine won the Critic's Choice Award at the 2009 Brit Awards after coming third in the BBC's Sound of 2009 poll. As well as attention from the BBC, the band received significant support from NME magazine, who included them on their annual Shockwaves NME Awards Tour for 2009, along with Glasvegas, Friendly Fires and White Lies.  The Sunday Times described Welch as "the most peculiar and most highly acclaimed female singer of the moment" and "the latest in a line of great English pop eccentrics". AllMusic referred to Lungs as "one of the most musically mature and emotionally mesmerising albums of 2009". Spin magazine rated Lungs eight out of ten and wrote, "You've gotta hand it to the girl: She always makes you feel something." The magazine named it the eighth best album of 2009. In December 2010, Florence and the Machine appeared on one of Spin's three holiday issue covers as Artist of the Year.  Florence and the Machine won the MasterCard British Album award for Lungs at the 2010 Brit Awards, having also been nominated for British Female Solo Artist and British Breakthrough Act. On 19 February 2010, Florence and the Machine won Best International Band at the 2010 Meteor Awards. The group led the nominations for the 2010 MOJO Awards, with four nods. They received a nomination for Best New Artist at the 53rd Annual Grammy Awards. In April 2011, Florence and the Machine were ranked 50 in the 2011 Time 100 poll, which annually lists the 100 most influential people in the world. American recording artist Beyonce cited Florence and the Machine as an influence for her 2011 album 4.

Did they have any other feelings towards Florence and the machine?

OUT:
were ranked 50 in the 2011 Time 100 poll, which annually lists the 100 most influential people in the world.