( CNN ) A Pennsylvania community is pulling together to search for an eighth-grade student who has been missing since Wednesday . The search has drawn hundreds of volunteers on foot and online . The parents of Cayman Naib , 13 , have been communicating through the Facebook group `` Find Cayman '' since a day after his disappearance , according to close friend David Binswanger . Newtown Police say Cayman was last seen wearing a gray down winter jacket , black ski pants and hiking boots . He could be in the Radnor-Wayne area , roughly 20 miles from Philadelphia , or may have purchased a train ticket to Philadelphia , according to an alert posted on Facebook . `` We think that he got a email from school and was upset by it and left as an impulsive act , '' Farid Naib , Cayman 's father , wrote Thursday on the group page . `` We have spoken to his friends and they do not know where he is . Cayman does have his phone , we do n't know if he has any cash , he does not have his wallet . '' The parents said that his phone was out of power at the time . `` Cayman left within 30 minutes after he received an email from school regarding overdue home work ( we do not blame the school ) and most probably did not do any pre planning ... He is a good kid , and has no substance abuse or other issues , this is the first time he has ever done anything like this , '' his father and mother , Becky Naib , posted Friday . The parents wrote Saturday that Cayman was not wearing waterproof clothing and that he did not take his backpack . Binswanger said weather limited search efforts Wednesday , the night Cayman went missing . Wednesday it was rainy and Thursday there was 6-8 inches of snow . Hundreds of volunteers have stepped up to pass out fliers and to canvass areas , according to posts . A post late Saturday explained search efforts included `` advanced , geo-spacial tracking software to determine the exact locations where searchers went , '' and added that the search would be taken to the skies Sunday with deployment of the Civil Air Patrol . In many posts , the families appealed directly to their son . `` Cayman , if you read this please know that you are forgiven for everything , and I mean everything , you have the ultimate free pass . Just come home , we are so worried about you '' the family posted Saturday . A message to families from the head of The Shipley School , which Cayman attends , read in part : `` Cayman 's sister Savannah is in ninth grade at Shipley and his parents , Farid and Becky , are terrific people . They have contacted police and are aware that we are sending you this email . We hope that Cayman is ok and are saying our prayers . '' CNN could not immediately get in touch with police or the FBI .
Cayman Naib , Wednesday , has n't been heard from since 13 . Police , family , volunteers search for eighth-grader .