Katherine Jackson, leaves with her son Jermaine and daughter Rebbie after the sentencing hearing of Dr. Conrad Murray. (Jason Redmond/Reuters)

But Murray will likely serve just half of his sentence for involuntary manslaughter — handed down by Judge Michael Pastor after a strong reprimand — in a county jail due to overcrowding.

Some of Jackson’s family members do not think that even four years behind bars is enough time.

“Four years is not enough for someone's life,” Jackson’s mother Katherine told KTLA. “It won't bring him back.” Her son Jermaine Jackson added, “100 years won't be enough.”

Prosecutors David Walgren and Debra Brazil appeared on the “Today” show Wednesday, where they seemed at peace with the sentence. “The actual time spent behind bars is not a reflection of the seriousness of Conrad Murray's conduct,” Brazil told Savannah Guthrie.

When asked if he was disappointed that the doctor may only serve two years, Walgren said Murray “certainly deserves the full weight of the punishment, and he certainly deserves the full four years.” He added that it was the sheriff who determined how much time Murray actually serves.

Guthrie’s “Today” interview with Murray, filmed days before he was convicted, actually contributed to his sentence. Murray refused to take any responsibility for Jackson’s death, calling the King of Pop an addict and a liar.

Walgren conceded that the interview was a bad idea: “I think it showed a complete failure to recognize what he did.”

Murray’s ex-girlfriend Nicole Alvarez, however, told TMZ that Murray had been “mournful for the past two-and-a-half years.”

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