Both Rich and Corbin want to explain the cycle of violence, not excuse it.
As an emergency room physician, Corbin said he regularly sees the carnage of gun violence, and added that it's not enough to "treat them and street them."
"Hurt people hurt people," Corbin said matter-of-factly. "It really is what's perceived by society as what's deserving. A veteran who has served our country deserves services, but the empathy is not there for young people who are chronically exposed to adversity."
"The assumption is that they're bad kids, (without) giving society any responsibility," he said.
Back at Temple University Hospital, the students head from the trauma bay to a classroom for a discussion before they visit the hospital's morgue, Lamont's last stop.
More than 7,000 students have come through the Cradle To Grave program. Amy Goldberg, the hospital's chief trauma surgeon and a co-founder of the program, said she and Charles are committed because the cost of violence is too high.
"I really think it's our responsibility to prevent these kids from coming in. So as much as I may get frustrated on any evening, it really can't stop us," Goldberg said. "We really want to teach them the preciousness of life, that in an instant your life can be changed forever."