Words once spoken cannot be recalled, nor the damage erased. Same with our beloved sport of hunting. Any shot, bow or gun, once released, can not be recalled.
Indeed, prayers for the victim and family. You said "injured" so I assume the victim isn't deceased so prayers for healing and restoration.
Prayers also for the shooter and his family. There will be tremendous periods of intense remorse and possible retribution by others.
Prayers for peace, forgiveness and healing both physical and emotional.