Vidvic,you are in actual fact very wrong. Colin did NOT have custody of the twins. He and Sheila had SHARED custody. Colin was attempting to seek full custody at the time of the murders. He asked for Nevilles back up in this aspect in the letter he wrote to Neville,but never sent. It appears obvious that June was not happy with the arrangement that Colin cared for the twins most of the time. She told Colins mother that she was worried that the children would end up in foster care. Maybe June reiterated this fear to Sheila on the night of the murders? As in,if you don't help us to help you get better,then we could lose the boys. I feel that it was more a discussion than an argument that night. The Bambers knew that Sheila was deteriorating and were probably deciding what to do for the best,throwing ideas around. June told Pam over the phone that she would like her advice,the next day when June and Sheila were due to visit with her.