Then you must have seen the part where Arcee called Starscream a killer.
Also, just because they didn't say "kill" or "dead" doesn't mean nothing gets killed dead.
I didn't. I did, however, see the part where the swordsman transformer manages to knock out (not kill) 4 of the generic bad guys without cutting or stabbing one. I mean, in the third movie Megatron gets his spine ripped out. Comparing that to TFP is embarrassing.
