法官判定这起袭击是蓄谋已久的，因为有大量证据显示被告事先策划过。

The judge ruled that the attack was ___premeditated due to overwhelming evidence of the defendant's prior planning.

他的行为显然是经过预谋的，而非一时冲动。

His actions were clearly ___pre-meditated, not just impulsive.