HUMBOLDT, Iowa — Hundreds of people are mourning the deaths of two clerks who were killed at different convenience stores in northern Iowa.

KCCI-TV of Des Moines says a big crowd braved the cold for a candlelight vigil Wednesday night at the Kum and Go in Humboldt, where clerk Sheila Myers was shot during a robbery Monday night.

Click here for the Herald’s free daily news e-mail.

About an hour earlier, Vicky Bowman-Hall was shot during a robbery at a convenience store in Algona.

Residents say one of the toughest things is the loss of innocence in the community.

A Minnesota teenager, Michael Richard Swanson, of St. Louis Park, is charged with first-degree murder and first-degree robbery in the women’s deaths.