People with information that may help find Heeringa are asked to call the NortonShores police at 231-733-2691.
CNN: Search on for woman kidnapped from gas station
2.
NortonShores, Michigan, Police Chief Daniel Shaw said that by Tuesday morning authorities had gotten 150 tips in the Heeringa case, but nothing conclusive.
CNN: Police: 'Grasping at straws' in Michigan kidnap case
3.
"Something very bad happened, " the police chief of NortonShores, a community of 22, 500 near Lake Michigan about 40 miles west of Grand Rapids, told CNN affiliate WOOD-TV.
CNN: Search on for woman kidnapped from gas station