 Sileo doubled back, killed Webb using a gun later linked to him by forensic evidence, then rushed to arrive at dinner before Moyse.Police believe that Moyse realized her boyfriend had set her up as his alibi, and had been unable to live with it.Police were able to prove that Sileo had killed Webb in order to receive the $650,000 () life insurance money from their partnership policies, before Webb could end their partnership and shut down the General Wayne.