SB 8.11.29

namucis tad-vadhaṁ dṛṣṭvā
 śokāmarṣa-ruṣānvitaḥ
jighāṁsur indraṁ nṛpate
 cakāra paramodyamam
Synonyms: 
namuciḥ — the demon Namuci; tat — of those two demons; vadham — the massacre; dṛṣṭvā — after seeing; śoka-amarṣa — lamentation and grief; ruṣā-anvitaḥ — being very angry at this; jighāṁsuḥ — wanted to kill; indram — King Indra; nṛ-pate — O Mahārāja Parīkṣit; cakāra — made; parama — a great; udyamam — endeavor.
Translation: 
O King, when Namuci, another demon, saw the killing of both Bala and Pāka, he was full of grief and lamentation. Thus he angrily made a great attempt to kill Indra.