Kenyon College Locked Down After 4 Go Missing

HOWARD, Ohio (CBS/WBNS/AP) Police are looking for an Ohio woman, her two children and a female friend in an investigation that prompted an overnight lockdown on the campus of Kenyon College where the woman's pickup truck was found nearby, officials said Friday.

The 32-year-old mother, Tina Herrman,  was reported missing by her boyfriend on Wednesday. A co-worker also went to Herrman's home in Howard, Ohio, located in between Columbus and Akron, to check on her when she didn't show up for work on Thursday, Knox County Sheriff David Barber said told CBS affiliate WBNS.

Deputies identified the missing as Herrman, her friend Stephanie Spring, 41, and Herrman's two children, Sarah Maynard, 13, and Kody Maynard, 11, WBNS reports.

Kenyon College officials say the overnight campus lockdown was prompted by the search for a suspect in the disappearances. The college ordered a lockdown of all students until 7 a.m. Friday.

An e-mail sent to students late Thursday night warned of "a potentially dangerous person in the vicinity."

Kenyon spokesman Shawn Presley says the campus learned there was a suspect related to the missing people and believed authorities were searching for that person. He says investigators didn't say whether they found anyone.

Kenyon is a private liberal arts college in central Ohio with an enrollment of about 1,600.

Presley says the lockdown was precautionary.