NORTON SHORES, Mich. (WZZM) - Norton Shores Police Chief Daniel Shaw has told WZZM 13's Jon Mills that an earlier person of interest in the case of Jessica Heeringa's disappearance has been cleared.
The person had been interviewed by police over the last couple of days.
Also, police tell WZZM that Jessica's parents have submitted DNA samples to police so investigators have her DNA on hand if needed.
Police said at a morning news conference that they are also checking the vendors who regularly visit the gas station making deliveries. They are checking some spots of spilled fluid in the parking lot of the gas station to see if that can lead to any clues.
We have crews in Norton Shores and Muskegon County today, following the investigation that began last Friday night after Jessica Heeringa disappeared from her job at the Exxon Mobile station on Sternberg Road at about 11:15pm.
For links to leave tips and surveillance videos and more pictures, click here or go to http://www.wzzm13.com/news/specials/findjessica/