The grandfather of a missing Kansas City baby says the child’s first birthday this week will be especially wrenching for the family.

Lisa Irwin’s parents, Deborah Bradley and Jeremy Irwin, reported her missing Oct. 4. The parents have said they believe their then 10-month-old daughter was snatched from her crib while other family members slept. Police have conducted several searches and cleared about 1,000 leads, but say they have no suspects or major leads in the case.

Bradley’s father, David Netz Jr., says he doesn’t know how they will get through Nov. 11, which is Lisa’s first birthday.

Netz also says he feels sure his daughter had nothing to do with the baby’s disappearance and asks that people keep looking for her.