It's once more into the legal breach for Howard K. Stern.

Mark "Hollywood" Hatten, a former beau of Anna Nicole Smith who is currently serving out a sentence for stalking the late model, has filed a $100 million federal lawsuit against Stern and a litany of legal bigwigs, not only alleging they violated his civil rights, causing him irreparable emotional and physical harm during his stalking trial, but also launching the incendiary claim that Stern once attempted to kill him.

The complaint, filed in U.S. District Court, rounds out an already headline-grabbing week for the Hatten clan.

There was no immediate comment from Stern.

The litigious jailbird is brother to Jackie Hatten, who was named this week as the source for the allegations of unsavory relations between Stern and Larry Birkhead, as featured in MSNBC anchor Rita Cosby's legally threatened Blonde Ambition: The Untold Story Behind Anna Nicole Smith's Death.

As for "Hollywood" Hatten, his most damning allegation against Stern dates back to the spring of 2000. In court documents obtained by TMZ, Hatten (who earlier this year threw his hat into the already overcrowded ring of potential Dannielynn baby daddies), claims Stern began giving him antidepressants in March 2000 after he complained of depression.

He claims that just two months later, Stern "absolutely tried to murder" him by, he said, injecting him with a "toxic blend" of narcotics when he was already in a "drug-induced comatosed state of mind."

Hatten claims Stern "did his very best" to make the incident appear to be an accidental overdose "in an attempt to remove Hatten from the life of both fiancée Anna Nicole Smith and her son Daniel Wayne Smith." Per the court docs, he claims he awoke two days later in a bathtub full of ice with the Smiths sobbing over him.

As if the allegations of attempted murder weren't enough, Hatten is also laying into Stern for what he deems an "ongoing pattern of severe violations of human rights."

The latter accusations stem from a dustup at Smith's Hollywood pad in March 2002.

Hatten says he was in the process of moving to Arizona and claims he was en route to Smith's Los Angeles home only to pick up the remainder of his belongings and visit with the actress. Despite being told by Smith's then assistant Kimberly Walthers that Smith did not want to see him, he continued toward the home before receiving a call from Stern, warning Hatten the attorney had phoned the police.

While records confirm that Stern did indeed phone the police, the rest of the story has been disputed.

Stern, Hatten claims, told police he was carrying a firearm with him. He alleges Stern made the accusation after willfully misconstruing Hatten's remark during a phone call: "I'm coming over packing my stuff." Hatten says he meant his personal belongings, not a gun.

There was a recording made of Stern's call to police, though it was lost in the evidence room and therefore never played during Hatten's stalking trial. A handful of lawyers who had heard the tape were not allowed to testify, and Hatten is now blaming Stern for the gaffe, claiming he was deprived the right to a fair trial.

Hatten also claims in the court documents that because of Stern publicly disparaging Hatten as a stalker, as well as his alleged "drug pushing," Hatten needlessly endured loss of appetite, income, weight, sex drive, hair and sleep. He also claims he has suffered mental anguish and lasting damage to his nervous system.

Furthermore, he claims his family has also irreparably and unwittingly suffered at the hands of Stern, saying they have and will continue to suffer extreme emotional distress and embarrassment "whenever the subject of stalking enters a conversation," whether the topic be in reference to Hatten or not.

As a result, Hatten is seeking general damages of $25,000 and punitive damages in excess of $100 million, and he is demanding a public apology from Stern on the counts of slander, libel and defamation of character.