 Park 's interests included sailing and climbing , which was relevant to the case due to the knots used to tie his wife 's body . While in prison , Park spent time practising t 'ai chi , taking a maths degree and keeping fit . 
 Park <a href='null_genetive' title='1'><mark>'s</mark></a>interests included sailing and climbing , which was relevant to the case due to the knots used to tie his wife <a href='null_genetive' title='2'><mark>'s</mark></a>body . While in prison , Park spent time practising t 'ai chi , taking a maths degree and keeping fit . 
Park  interests included sailing and climbing , which was relevant to da case due to tdaknots used to tie his wife  body . While in prison , Park spent time practising t 'ai chi , taking a maths degree and keepin fit .