Challenging question, not so sure but many do appear to have a feeling toward the end of the journey. Some may express their feelings while others remain silent accepting whatever arrives.
Life offers no answers, sorry to hear about this young man going so soon, take care, keep safe knowing you did everything you were able for the time he spent with you.
!tip
Thanks @joanstewart the fate did come very early for him...there is feeling of sorrow seeing young lads dying at this age and that too with sudden turn of events...
Always a shock, sadly no one knows when it is the end of the road.