From The Guardian:
A senior republican was last night being questioned by police about the murder of a former bouncer in a bar brawl in Belfast.
Robert McCartney, 33, a father of two from the nationalist Short Strand area, died in hospital of stab wounds after a fight in Magennis's Whiskey cafe in the city centre on Sunday.
Police carrying out searches in the nationalist Markets area have come under attack from crowds of teenagers throwing stones, bricks and bottles. Searches in the area continued yesterday.
Tony Blair and the Irish prime minister, Bertie Ahern, yesterday increased the pressure on Sinn Féin to stop all IRA violence and criminality. But as speculation grows about divides within the republican movement, Sinn Féin would not comment on the police questioning.
http://www.guardian.co.uk/Northern_Ireland/Story/0,2763,1403762,00.html