Question: Slaves consists of a lead vocalist formerly of what post hardcore band?

Context articles: Reino de Tormentas
Glasseater
Todd Weinstock
Vinnie Caruana
Inch (band)
Everything That Got Us Here
Emarosa
The Capitol City Dusters
Slaves (American band)
Won Mississippi

Reino de Tormentas ("translated": Kingdom of Storms) is the debut album of Argentine Post hardcore band DENY released on September 23, 2011 via Pinhead Records.
 It was recorded between Juni and September 2011 by Javier Casas the guitarist of Hardcore punk band Nueva Ética at Infire Studios in Buenos Aires.
 Cover artwork was designed by Marina Fages a musician from Argentina.
Glasseater was a pop punk/post hardcore band from Miami, Florida.
 The band formed in 1998 as a duo, eventually expanding to a quintet.
 Energetic live shows got the band signed to Ides of March Records in 1999, and a second album was released on Eulogy Recordings in 2000.
 Nationwide touring ensued, opening for Black Flag, 311, Dashboard Confessional, and Pennywise.
 Signing to Fearless Records, the band re-released their second album and recorded a third, soon moving on to Victory Records to record their fourth album in 2003.
 Glasseater performed one final time in Miami on July 31, 2010 at Churchill's Pub.
 The show involved both versions of the band with original vocalist Jason Calleiro and later vocalist Julio Marin alternating vocal duties throughout the show.
 The show is considered their reunion as well as their final show, because the band never played a farewell show before their hiatus in 2003.
Todd Weinstock (born November 5, 1978) is an American guitar player.
 He was part of the original line-up for influential post hardcore band Glassjaw.
 Prior to that, he and Justin Beck, also in Glassjaw, were in a Jewish straight-edge band named Sons of Abraham.
 He left Glassjaw in 2004 to head the electronic rock band Men, Women & Children which disbanded in 2008.
 Since then he created and played with Fools Gold recording artists Cubic Zirconia (2009).
 He is the current guitar player for Hussle Club fronted by former Hearts Revolution and Santigold drummer, Prince Terrence as well being the founding member of project Get Involved!
 (details below).
Vinnie Caruana (born September 25, 1979) is an American singer.
 He is the vocalist for Long Island punk band The Movielife and lead singer/songwriter for the indie/post hardcore band I Am the Avalanche.
Inch was a post hardcore band formed in San Diego in 1992.
 The group was founded by former Sub Society vocalist Michael "Stimy" Steinman, guitarist Mike Paprocki and bassist Jeff Reese.
Everything That Got Us Here is the third studio album from American post hardcore band SECRETS.
 It is the band's first release with unclean vocalist Wade Walters.
 The lead single, "Left Behind", was released on October 14, 2015.
Emarosa ( ) is an American post-hardcore band from Lexington, Kentucky.
 The band currently consists of founding members ER White (lead guitar) and Jordan Stewart (keyboards), as well as lead vocalist Bradley Walden and rhythm guitarist Marcellus Wallace.
The Capitol City Dusters (also known as The Dusters) were an American post hardcore band formed in Washington, D.C., in 1996.
 Recording their debut studio album in 1998, the group combined elements of the hardcore punk movement in D.C., as well as sentiments reminiscent of the first wave of punk music.
 In 2002, after a brief hiatus, the band followed-up with the positively-received album, "Rock Creek".
Slaves (stylized as SL▲VES) is an American post-hardcore group formed in Sacramento, California.
 The band currently consists of lead vocalist Jonny Craig, formerly of Emarosa and Dance Gavin Dance, bassist Colin Vieira of Musical Charis and guitarist Weston Richmond.
 The band released their debut album, "Through Art We Are All Equals" on June 24, 2014.
 Their second studio album, "Routine Breathing", was released on August 21, 2015.
 The band released the single "I'd Rather See Your Star Explode" on January 20, 2017, the lead single off their upcoming third studio album: "Beautiful Death", set to be released in September 2017.
Won Mississippi is an alternative post hardcore band based in Berwick-Upon-Tweed, UK.
 The group, which formed in 2001, consists of Patrick Baird (vocals), Rob Wilkinson (guitars), Dan Richards (bass) and Adam Roberts (drums).