Volume 6: This Sorrowful Life

Deaths
Eugene Cooney: http://the-walking-dead-all-deaths.wikia.com/wiki/Eugene_Cooney_(Comic_Book_Series)

Stevens: http://the-walking-dead-all-deaths.wikia.com/wiki/Stevens_(Comic_Book_Series)

Otis: http://the-walking-dead-all-deaths.wikia.com/wiki/Otis_(Comic_Book_Series)

Caesar Ramon Martinez: http://the-walking-dead-all-deaths.wikia.com/wiki/Caesar_Ramon_Martinez_(Comic_Book_Series)