Parents of students rescued from the sunken ferry are grieving , desperate . The students ' vice principal killed himself ; some believe others may do the same . South Korea has a high suicide rate compared to other countries . Mental health officials say no family members attended counseling near the site .
Parents of students missing from the sunken ferry are grieving , desperate . The students ' vice principal killed himself ; some fear others may do the same . South Korea has a high suicide rate compared to other countries . Mental health workers say no family members sought counseling near ferry site .