Put this under "strange & hard to believe
but believe it or not, it's true":

o Nicole Brown & O.J. Simpson married February 2 1985

o Joel Rifkin arrested for murder June 18 1993

o "The Masseuse" aired November 18 1993, a show
... in which Elaine was concerned that her boyfriend's
... name was the same as accused mass murderer
... Joel Rifkin, & suggested he change his name to
... Deion (inspired by Deion Sanders) or O.J. (inspired
... by O.J. Simpson)

o Nicole Brown Simpson & her friend, Ron Goldman,
... were found stabbed to death on June 12 1994

o O.J. Simpson arrested & charged with their murder
... on June 17 1994 after being pursued by police with
... O.J. & his friend in a Ford Bronco with an estimated
... TV audience of 95 million

o The pursuit, arrest, & trial of Simpson were among
... the most widely publicized events in American his-
... tory. O. J.'s defense team included Johnnie Cochran,
... Robert Kardashian (whose wife & daughters would
... later become youtube video stars), Robert Shapiro,
... & F. Lee Bailey.

I'm currently watching that Seinfeld season, it's
great, perhaps the best Seinfeld season; in sea-
son 5 episode 9, which aired November 18 1993,
Elaine is dating a man named Joel Rifkin, whose
name happens to match the name of serial killer
Joel Rifkin, who was arrested for murder on ...

.... June 28 1993 (see below). That episode has
Elaine saying "Hey, how many people did Rifkin
strangle? Eighteen?" [the following article indi-
cates he had 17 victims]

Joel Rifkin
https://en.wikipedia.org/wiki/Joel_Rifkin

.... On June 28, 1993, state troopers patrolling
Long Island's Southern State Parkway noticed
the pickup truck without a license plate. After
pulling Rifkin over, they found Bresciani's body
under a tarpaulin.

....

In the Seinfeld episode "The Masseuse," Elaine's
boyfriend is named Joel Rifkin & references to
the serial killer are made throughout the episode.
At a New York Giants game they are attending, the
crowd's reaction to her boyfriend's name when it
is announced over the loudspeaker prompts him ...

.... to agree to Elaine's suggestion to change his
name. (Ironically, one of Elaine's suggestions for
a new name was O.J., O.J. Simpson would be ar-
rested for the murder of his ex-wife & her friend
on June 12 1994, six months after the episode
aired on November 18 1993, & be tried yet acquit-
ted two years after airing on October 3 1995).

The Masseuse (Seinfeld)
https://en.wikipedia.org/wiki/The_Masseuse_(Seinfeld)

.... While visiting her boyfriend, Joel Rifkin, Elaine
is seen reading an NFL Gameday program. She
suggests that many people these days are named
"Deion," referencing Deion Sanders.

While brainstorming new first names for Joel, Elaine
suggests "O. J." (after O. J. Simpson) as a name that
would be less associated with murder. Six months
after this episode aired, Simpson was arrested &
charged with the double murder of his ex-wife & her
friend.

O.J. Simpson
https://en.wikipedia.org/wiki/O._J._Simpson

.... On the night of June 12, 1994, Nicole Brown Simp-
son & her friend, Ron Goldman, were found stabbed
to death outside Nicole's condo in the Brentwood
neighborhood of Los Angeles. Simpson, who had
pleaded no contest to a domestic violence charge
against Brown in 1989, was an immediate person of
interest in their murders. ...

~~~

Segment of the script where Elaine proposes that Joel
change his name to Deion, then suggest he change his
name to O.J.
https://www.seinfeldscripts.com/TheMasseuse.html

....

JOEL: Uh, boning up on football? (talking about the
magazine she's reading as he sits beside her)

ELAINE: Yeah, yeah. You know what? There are a lot
of players named Deion these days. What a cool
name, Deion. If I were gonna change my name, I'd go
with Deion.

JOEL: Deion Benes?

ELAINE: Well as a woman, it makes no sense. But, I
mean, let's say I was you. And I decided I was gonna
change my name for no real reasons whatsoever--
Deion Rifkin. Wow! That is so cool.

JOEL: D-Deion Rifkin?

ELAINE: Well maybe you're not the Deion type. O.K.
then let's see, let's see, what do we got? (looking at
the magazine, she starts to gasp and loses it) Oh!
Oh oh oh! O.J.! O.J. Rifkin! You don't even use a name,
it's just initials. Oh please please please change your
name to O.J.! Please, it would be so great!

JOEL: Elaine! What is going on?

(scene ends)

--- --- ---

Follow-up with one clarification:

On Friday, January 27, 2023 at 9:05:06 PM UTC-6, observer wrote:

..> Put this under "strange & hard to believe
..> but believe it or not, it's true":
..>
..> o Nicole Brown & O.J. Simpson married February 2 1985
..>
..> o Joel Rifkin arrested for murder June 18 1993
..>
..> o "The Masseuse" aired November 18 1993, a show
..> .. in which Elaine was concerned that her boyfriend's
..> .. name was the same as accused mass murderer
..> .. Joel Rifkin, & suggested he change his name to
..> .. Deion (inspired by Deion Sanders) or O.J. (inspired
..> .. by O.J. Simpson)
..>
..> o Nicole Brown Simpson & her friend, Ron Goldman,
..> .. were found stabbed to death on June 12 1994
..>
..> o O.J. Simpson arrested & charged with their murder
..> .. on June 17 1994 after being pursued by police with
..> .. O.J. & his friend in a Ford Bronco with an estimated
..> .. TV audience of 95 million
..>
..> o The pursuit, arrest, & trial of Simpson were among
..> .. the most widely publicized events in American his-
..> .. tory. O. J.'s defense team included Johnnie Cochran,
..> .. Robert Kardashian (whose wife & daughters would
..> .. later become Youtube video stars), Robert Shapiro,
..> .. & F. Lee Bailey.

Not sure, but I think The Kardashians first appeared on
the E! channel in October 2007, unclear when & to what
extent they appeared on Youtube, & most recently they
appeared on Hulu.

..>
..> I'm currently watching that Seinfeld season, it's
..> great, perhaps the best Seinfeld season; in sea-
..> son 5 episode 9, which aired November 18 1993,
..> Elaine is dating a man named Joel Rifkin, whose
..> name happens to match the name of serial killer
..> Joel Rifkin, who was arrested for murder on ...
..>
..> ... June 28 1993 (see below). That episode has
..> Elaine saying "Hey, how many people did Rifkin
..> strangle? Eighteen?" [the following article indi-
..> cates he had 17 victims]
..>
..> Joel Rifkin
..> https://en.wikipedia.org/wiki/Joel_Rifkin
..>
..> ... On June 28, 1993, state troopers patrolling
..> Long Island's Southern State Parkway noticed
..> the pickup truck without a license plate. After
..> pulling Rifkin over, they found Bresciani's body
..> under a tarpaulin.
..>
..> ...
..>
..> In the Seinfeld episode "The Masseuse," Elaine's
..> boyfriend is named Joel Rifkin & references to
..> the serial killer are made throughout the episode.
..> At a New York Giants game they are attending, the
..> crowd's reaction to her boyfriend's name when it
..> is announced over the loudspeaker prompts him ...
..>
..> ... to agree to Elaine's suggestion to change his
..> name. (Ironically, one of Elaine's suggestions for
..> a new name was O.J., O.J. Simpson would be ar-
..> rested for the murder of his ex-wife & her friend
..> on June 12 1994, six months after the episode
..> aired on November 18 1993, & be tried yet acquit-
..> ted two years after airing on October 3 1995).
..>
..> The Masseuse (Seinfeld)
..> https://en.wikipedia.org/wiki/The_Masseuse_(Seinfeld)
..>
..> ... While visiting her boyfriend, Joel Rifkin, Elaine
..> is seen reading an NFL Gameday program. She
..> suggests that many people these days are named
..> "Deion," referencing Deion Sanders.
..>
..> While brainstorming new first names for Joel, Elaine
..> suggests "O. J." (after O. J. Simpson) as a name that
..> would be less associated with murder. Six months
..> after this episode aired, Simpson was arrested &
..> charged with the double murder of his ex-wife & her
..> friend.
..>
..> O.J. Simpson
..> https://en.wikipedia.org/wiki/O._J._Simpson
..>
..> ... On the night of June 12, 1994, Nicole Brown Simp-
..> son & her friend, Ron Goldman, were found stabbed
..> to death outside Nicole's condo in the Brentwood
..> neighborhood of Los Angeles. Simpson, who had
..> pleaded no contest to a domestic violence charge
..> against Brown in 1989, was an immediate person of
..> interest in their murders. ...
..>
..> ~~~
..>
..> Segment of the script where Elaine proposes that Joel
..> change his name to Deion, then suggest he change his
..> name to O.J.
..> https://www.seinfeldscripts.com/TheMasseuse.html
..>
..> ...
..>
..> JOEL: Uh, boning up on football? (talking about the
..> magazine she's reading as he sits beside her)
..>
..> ELAINE: Yeah, yeah. You know what? There are a lot
..> of players named Deion these days. What a cool
..> name, Deion. If I were gonna change my name, I'd go
..> with Deion.
..>
..> JOEL: Deion Benes?
..>
..> ELAINE: Well as a woman, it makes no sense. But, I
..> mean, let's say I was you. And I decided I was gonna
..> change my name for no real reasons whatsoever--
..> Deion Rifkin. Wow! That is so cool.
..>
..> JOEL: D-Deion Rifkin?
..>
..> ELAINE: Well maybe you're not the Deion type. O.K.
..> then let's see, let's see, what do we got? (looking at
..> the magazine, she starts to gasp and loses it) Oh!
..> Oh oh oh! O.J.! O.J. Rifkin! You don't even use a name,
..> it's just initials. Oh please please please change your
..> name to O.J.! Please, it would be so great!
..>
..> JOEL: Elaine! What is going on?
..>
..> (scene ends)
..>
..> *--- --- ---*