Roman Olearchyk writes: Ukrainian officials have made their second breakthrough in days in a murder case that has haunted the country for nearly a decade and played a role in fomenting the political unrest that led to the Orange Revolution in 2004. A week after arresting a main suspect in connection with the murder of journalist Georgy Gongadze, prosecutors on Tuesday said they had uncovered fragments of what is believed to be the victim’s skull in a region outside the capital Kiev.
