I think the assumption is he wasn't going to be a frontsman for Syria, if Syria was involved. This was at the tail end of the Civil war, and there could have been other scores to settle. Syria had the most to gain by it, because his successor was very pro-Syrian.
Jpost tickers:
Lebanon crisis meeting to be held in Rome July 26
[ 21/07 22:02 - INTERNATIONAL ]
Halutz: Hizbullah loses 100 fighters
[ 21/07 21:12 updated 21:13 - ISRAEL ]
Nablus: Palestinians report doctor killed by IDF
[ 21/07 21:09 - ISRAEL ]
Rice outlines strategy for end to Lebanon fighting
[ 21/07 20:58 - INTERNATIONAL ]
Police seeking suspected terrorist in Tel Aviv
[ 21/07 20:34 - ISRAEL ]
Israel takes first Davis Cup match against Britain
[ 21/07 20:24 - SPORTS ]
They look like idiots!