The murderer
ratsach (raw-tsakh')
to dash in pieces, i.e. kill (a human being), especially to murder -- put to death, kill, (man-)slay(-er), murder(-er).
rising
quwm (koom)
to rise (in various applications, literal, figurative, intensive and causative)
with the light
'owr (ore)
illumination or (concrete) luminary (in every sense, including lightning, happiness, etc.) -- bright, clear, + day, light (-ning), morning, sun.
killeth
qatal (kaw-tal')
to cut off, i.e. (figuratively) put to death -- kill, slay.
the poor
`aniy (aw-nee')
depressed, in mind or circumstances -- afflicted, humble, lowly, needy, poor.
and needy
'ebyown (eb-yone')
destitute -- beggar, needy, poor (man).
and in the night
layil (lah'-yil)
a twist (away of the light), i.e. night; figuratively, adversity -- (mid-)night (season).
is as a thief
gannab (gaw-nab')
a stealer -- thief.