Text messages also continued to be sent from Petito's phone to her mother until August 30, though doubts have been raised on who sent the messages. On August 27, a text from Petito's phone was sent to her mother that said "Can you help Stan, I just keep getting his voicemails and missed calls". The message raised concerns for Petito's mother, who said Stan was Gabby's grandfather and that she never referred to him by his first name.[37] The last message, sent on August 30, said "No service in Yosemite".