An interesting article, which claims to have interviewed Uighurs who had fought in Syria and no doubt their aspire to attack back home.
Link:https://apnews.com/79d6a427b26f4eeab...-to-Syrian-war

A Lebanese website reports:
Two commanders belonging to the Turkistan Islamic Party jihadist group which operates against Syrian army-led forces in the country’s northwest were found dead recently, having been assassinated by unknown conspirators.
Link:https://www.almasdarnews.com/article...-region-video/

Needless to say this is the Uighur's jihadist group and on Twitter there is speculation by the AP journalist @gerryshih that various parties, including the Chinese, did the deed.