Former British police investigator outlines 'two options' which may have happened to missing Jay Slater in Tenerife

<p>Former British police detective and TV investigator Mark Williams-Thomas, who has joined the search to find missing Jay Slater, 19, in Tenerife, told media he believes there are two likely options which could have happened to the Lancashire teenager.</p><br /><p>Williams-Thomas also said that, after receiving &#39;key information&#39; through Slater&#39;s friends and family, there are &#39;two key people&#39; he wants to track down and speak to.</p><br /><p>(Credit: Reuters)</p>