MEXICO CITY — Mexican President-elect Andres Manuel Lopez Obrador said Wednesday his administration will accept a truth commission to investigate the case of 43 teachers-college students missing since Sept. 26, 2014, drawing rare praise and expressions of hope from the long-suffering parents of the victims.Wednesday marked the fourth anniversary of the students’ abduction by corrupt police in the southern city of Iguala. Prosecutors say the police turned the students over to a drug gang, which allegedly killed them and incinerated their bodies. But apart from charred bone fragments matched to one student . . .