After defections of his defenders had made his position untenable , Li Tan tried to commit suicide by drowning himself in Daming Lake .
After losing 4000 of his troops in the battle , Li Tan retreated to Jinan to make his last stand .
After defections of Li Tan 's defenders had made his position untenable , Li Tan tried to commit suicide by drowning himself in Daming Lake .
After losing 4000 of his troops in the battle , Li Tan retreated to Jinan to make his last stand .