Well, in King David's case -
2 Sam 12:10 Now therefore the sword shall never depart from thine house; because thou hast despised me, and hast taken the wife of Uriah the Hittite to be thy wife.
11 Thus saith the LORD, Behold, I will raise up evil against thee out of thine own house, and I will take thy wives before thine eyes, and give them unto thy neighbour, and he shall lie with thy wives in the sight of this sun.
12 For thou didst it secretly: but I will do this thing before all Israel, and before the sun.
13 And David said unto Nathan, I have sinned against the LORD. And Nathan said unto David, The LORD also hath put away thy sin; thou shalt not die.
14 Howbeit, because by this deed thou hast given great occasion to the enemies of the LORD to blaspheme, the child also that is born unto thee shall surely die.
"I know Murderers can still go to heaven but will they still recieve their punishment it Heaven or do you just get your punishment here and thats it?"
If you're a Christian, and have really repented of the SIN, then It's GONE, and there's nothing to be "Punished for" by the Lord any more - since JEsus was "Punished" for it. There MAY WELL BE "Punishment" from the local authorities (since murder IS a crime - maybe a CAPITAL crime, after all). And there may be "Social repurcussions" like Paul had to face all the time because of his earlier terrorism.
"Cause i remember a verse in the Bible that show you can still can be punished in heaven for works on Earth, it said "Whoever sins against the holy spirit will not be forgivin in this life or the next"......i know its wayyyy different but just tryin to prove that you can get punished in heaven for something done while here"
AH - Mat 12:
32 And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come.
That would be one of the Roman Catholic "Proof texts" for their "Purgatorial Sanctification" tradition. The reasoning is that Since there Are SINS that WILL NOT be forgiven in the "World to come", then by creative extrapolation, there are apparently "SINS THAT WILL be forgiven in the "World to come".
But that would only be an "Argument from Silence" in support of a non-existent, and un-needed "Place of purification" adapted from the pagan religions if the time. "Purgatory" has no requirement to exist, since the Christian is PURE with Jesus' own purity (the only purity and righteousness ANY OF US will ever have) by Faith in the Savior's sacrificial work on the cross.