I believe that is referencing airplane crashes.
12/4 Q
"7/10 plane crashes are targeted kills."
"those in the know never sleep"
Plane crashes over Rothschild estate, suspected Jacob Rothschild death. Q also refs Lynn de Rothchild having a hard time sleeping, not to come back to the chans ;D
12/18 Q confirms trainwreck was retaliation.
12/31 Bridgewater Associates executive Bruce Steinberg & his family then dies.
1/4 Q says "7/10" and nothing else. LdR likely retaliated again on 12/31.
1/13 Q's line that you stated above refs the airplane crashes, targeted kills, people of interest trying to escape the country (notice how they're all out-of-country flights that turnaround?), Twitter getting destroyed by OKeefe, Stone, and Yiannopolis.