NEW : ` ` This is too horrible to believe . We are just all devastated , '' her father says . Police say robbery may have been a suspect in Michaela Harte 's strangulation . She was on her honeymoon with Gaelic football player Liam McGrath in Mauritius . Police say McAreavey is not a suspect .
NEW : `` This is too horrible to contemplate . We are just all devastated , '' her father says . Police say robbery might have been a motive in Michaela Harte 's strangulation . She was on her honeymoon with Gaelic football star John McAreavey in Mauritius . Police say McAreavey is not a suspect .