Answer the question at the end by quoting:

Sandman (Wesley Dodds) is a fictional character, a superhero who appears in American comic books published by DC Comics. The first of several DC characters to bear the name Sandman, he was created by writer Gardner Fox and artist Bert Christman. Attired in a green business suit, fedora, and gas mask, the Sandman used a gun emitting a sleeping gas to sedate criminals. He was originally one of the mystery men to appear in comic books and other types of adventure fiction in the 1930s but later was outfitted with a unitard/cowl costume and developed into a proper superhero, acquiring sidekick Sandy, and founding the Justice Society of America.
Dodds has prophetic dreams which come to him as cryptic, ambiguous visions of crimes. Originally of unexplained origin, these dreams were later ascribed to encounter between Dodds and the entity known as Dream via retcon. The visions haunt Wes, who uses his keen intellect and amateur detective skills to properly interpret them. He is also a talented chemist and inventor, creating the sand-like substance and the Silicoid Gun ultimately responsible for transforming Sandy the Golden Boy into a Silicon-based life-form. In the early years of his career, Wesley Dodds possesses the strength level of a man who engages in regular exercise, and was a fine hand-to-hand combatant. As he grows older, his strength level diminishes in relative proportion to his age. As hobbies, Wes enjoys reading, writing, poetry, origami and philosophy. Through an unknown process, Wes passes his power of prophetic visions on to his former ward, Sanderson Hawkins upon the moment of his own death. Wesley Dodds' costume consists of a basic green business suit, fedora, a World War I era gas mask, a gas gun, and a wire gun. The gas mask protects Dodds from the effects of the gas emitted from his gas gun. The gas gun, a handheld device fitted with cartridges containing concentrated sleeping gas, is Wesley Dodds' only known weapon. Pressing the trigger on the gun releases a cloud of green dust rendering all within the Sandman's immediate vicinity unconscious. An upgraded canister dispenser for the gun is provided for him by his close friend and confidante, Lee Travis. Wes is also known to conceal smaller knockout gas capsules in a hollow heel on his shoe. These prove ideal when placed in situations where his gas gun is not readily available. He also makes use of a specially designed "wirepoon" gun, which fires a length of thin, steel cable. In the early days of his career, the Sandman drives a black 1938 Plymouth Coupe. The car is enhanced with various features to aid Wes in his crusade against crime.

Did he have a sidekick?

Sandy the Golden Boy into a Silicon-based life-form.

Answer the question at the end by quoting:

Blink-182 (often stylized as blink-182; pronounced "blink one eighty two") is an American rock band formed in Poway, California in 1992. Since 2015, the lineup of the band has consisted of bassist and vocalist Mark Hoppus, drummer Travis Barker, and guitarist and vocalist Matt Skiba. Founded by guitarist and vocalist Tom DeLonge, Hoppus and drummer Scott Raynor, the band emerged from the Southern California punk scene of the early 1990s and first gained notoriety for high-energy live shows and irreverent lyrical toilet humor. Blink-182 was initially known as Blink until an Irish band of the same name threatened legal action; in response, the band appended the meaningless number "-182".
Hoppus and Barker decided to continue on without DeLonge, and enlisted Alkaline Trio vocalist/guitarist Matt Skiba to "fill in" for three shows in March 2015. Hoppus and Skiba had been wanting to work together musically for several years, so he was the first and only person considered for the role. After legal battles with DeLonge were worked out, Skiba joined Blink-182 as an official member and began preparations for new music. The resulting album, California, was produced by John Feldmann. He was the group's first new producer since longtime collaborator Jerry Finn. California was recorded between January and March 2016. The band, as well as Feldmann, would regularly spend "18 hours" in the studio a day, aiming to start and complete multiple songs in that timeframe. "We all wanted to write the best record that we could [...] It does feel like a new beginning. It feels like when we used to tour and sleep in the van because that's all we wanted to do is play rock music," said Hoppus. Upon its July 2016 release, California became the band's second number-one album on the Billboard 200, and first in 15 years; it also reached the top for the first time in the United Kingdom. Its lead single, "Bored to Death", became the group's first number one single in 12 years. The band supported the album with a large headlining tour across North America between July and October 2016, and a European leg in June and July 2017. A deluxe edition of California--essentially a double album including songs left off the original album--was issued in 2017. California earned the band their first nomination for Best Rock Album at the Grammy Awards. Critical reviews of the album, however, were mixed; many considered Feldmann's input and the throwback nature of the songs as formulaic. Recently, the band has taken time off and are preparing to record their eighth studio album. "Somehow, Blink has had this resurgence like we never expected," Hoppus told Kerrang! in July 2017. "I count myself lucky to have been [playing in the band] as long as I have." The band signed a 16-date residency deal with the Palms Casino Resort in Las Vegas. The shows, known as "Kings of the Weekend," will take place on select weekends beginning May 26, 2018. The last show is on November 17, 2018.

what happened in 2015?
Hoppus and Barker decided to continue on without DeLonge, and enlisted Alkaline Trio vocalist/guitarist Matt Skiba to "fill in" for three shows in March 2015.