21-year-old Dorian Powell was discovered dead over a week ago having suffered fatal stab wounds.
Police in California announced the arrest of Nakasia James on Sunday following the teens admission on Facebook.
It is believed the couple were involved in a domestic dispute which turned violent.
Police discovered James in the 400 block of North Hamilton Avenue in Hemet, located about 40 miles southeast of San Bernardino California.
KTLA report that police received a call regarding a person “who had reportedly been stabbed by his girlfriend,” according to a news release issued that day.
Image via The Digital Journal
The status which was posted to Facebook on Monday evening read:
“Just goin tell ya nw be4 I get caught, last night my ex was drunk off ej && was fightn me . hit mee in the face and we was really fightn and I gt the knife and stabbed him ddnt think I would hurt him BT I did he died and I’m on the run pigs lookn for me BT god knows I didn’t mean to stab him I was mad AF he socked me in my eyes and just picked sumthin up. BTsorryy lord hopefully u forgive me! And sorry Dorian Powell rip” [sic]
The confession has since been removed but screenshots have been circulating online provided by The Hemet Police Department.