Ted Falk had previously said he would not attend the July 9 march since he had committed to going to another event called the Frog Follies.
The federal agency says more than half of the total can be attributed to three industries.
In a letter to parents regarding fentanyl, assistant commissioner Bill Fordy says on the RCMP's website that a safe summer depends on caregivers understanding the risks linked to illicit drugs.
Const. Geoff Higdon said the Royal Newfoundland Constabulary took the call Friday from someone in the St. John's area.
A man and a woman remain in police custody facing potential charges after they were arrested in possession of a Bait Car early Friday morning.
Crystal has not been heard from since speaking by phone to a family member on June 2, 2016.