YOUNG THUG NEPHEW ARRESTED FOR GF'S MURDER

Young Goon's nephew remains in authorities custody after...

...allegedly shooting his sweetheart in the face and killing her.

 Fardereen Deonta Grier was detained Wednesday after polices were called to a residence outside Atlanta. 

When officers responded, Grier was sobbing and his girlfriend,...

...Fate Fitzpatrick, was dead in a swimming pool of blood by the front door.

 Glover states Grier told police officers he was Young Criminal's nephew,...

... the kid of YT's earliest sibling ... however it's uncertain why he picked to share the details.

 A source near to Young Thug confirms the relation.

 When it comes to what took place ... 

...we're told Grier first informed reacting officers he was warding off 2 armed, masked burglars,...

...however officers state he ultimately confessed to shooting Fate in the face. 

A next-door neighbor apparently heard arguing in the home prior to the shooting. 

 Grier was arrested and charged with murder.

 As you understand, Young Goon is presently in custody too ...

...on a large range of RICO charges after being rejected bond several times. 

His fellow YSL artist, Gunna-- likewise charged in the RICO case-- ...

...was in court Thursday attempting to get launched on bond, but a judge shot it down.

 We have actually reached out to Young Punk's legal group for comment on the situation with Grier ... so far, no word back.

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