Sneak peek of 'Injustice with Nancy Grace' season finale: 'Too many red flags' (Exclusive)

The season finale of Oxygen's "Injustice with Nancy Grace" is a doozy.

Nancy Grace will unpack the suspicious death of Shele Covlin in the riveting episode, which involves the tug of war between religious law and criminal law in order to seek justice for Shele.

In an exclusive sneak peek of the finale available only on AOL, Grace begins to question the victim's family's claim that her death was an accident.

"You know what's tricky in a case like this? It reminds me in an arson case, in a way: In arson, you have to prove a crime even happened before you can start saying, 'Wow, who did it?'" she explains in the clip. "This was an accident, according to everyone; she slipped and fell in the bathtub. Me? I don't buy it. There's too many red flags, too many problems, too many things that don't fit."

The finale of "Injustice with Nancy Grace" season one airs on August 31 at 6 p.m. only on Oxygen

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Nancy Grace through her career
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Nancy Grace through her career
PASADENA, CA - JANUARY 08: Nancy Grace arrives at the Hallmark Channel and Hallmark Movies and Mysteries Winter 2016 TCA Press Tour at Tournament House on January 8, 2016 in Pasadena, California. (Photo by Gregg DeGuire/WireImage)
285634 01: Former prosecutor Nancy Grace stands at a press conference for the television show 'Cochran and Grace' November 12, 1996 in New York City. The show focuses on controversial issues facing the United States judicial system. (Photo by Evan Agostini/Liaison)
UNITED STATES - FEBRUARY 19: Cochran & Grace lawyers Johnnie Cochran inside the Court TV offices before show. Cochran and co-anchor Nancy Grace on Court TV set., (Photo by Andrew Savulich/NY Daily News Archive via Getty Images)
Dr. Phil, Sharon Stone, Larry King and family and Nancy Grace and Mike Wallace (Photo by SGranitz/WireImage)
NEW YORK - JANUARY 13: (TABLOIDS AND HOLLYWOOD REPORTER OUT) Court TV Anchor Nancy Grace attends the Court TV premiere of 'Chasing Freedom' January 13, 2004 in New York City. (Photo by Peter Kramer/Getty Images)
NEW YORK - JUNE 22: Court TV anchor Nancy Grace attends the 2004 American Women in Radio and Television Gracie Allen Awards gala on June 22, 2004 at the New York Hilton Hotel, in New York City. (Photo by Evan Agostini/Getty Images)
UNIVERSAL CITY, CA - JANUARY 12: (L to R) Court TV Anchor Nancy Grace and Henry Schleiff, Chairman/CEO, Court TV fields a question during panel discussion for the Court TV 2005 Television Critics Winter Press Tour at the Hilton Universal Hotel on January 12, 2005 in Universal City, California. (Photo by Frederick M. Brown/Getty Images)
Ken Jautz, executive vice president , CNN News Group, Nancy Grace, host of 'Nancy Grace,' A.J. Hammer and Karyn Bryant, co-hosts of 'Showbiz Tonight' (Photo by M. Caulfield/WireImage for Temp Account)
Nancy Grace, host of 'Nancy Grace' during Turner TCA Day at Universal Hilton in Los Angeles, California, United States. (Photo by M. Caulfield/WireImage for Temp Account)
NEW YORK - JANUARY 25: (L-R) Court TV anchors Nancy Grace and Diane Diamond attend the premiere of Court TV' s original movie 'The Exonerated' on January 25, 2005 in New York City. (Photo by Peter Kramer/Getty Images)
Nancy Grace - Photo by Jesse Grant/WireImage.com/ABC at the El Capitan Entertainment Center in Hollywood, California (Photo by Jesse Grant/WireImage)
Nancy Grace, winner Outstanding Talk Show during 31st Annual American Women in Radio & Television Gracie Allen Awards - Show at Mariott Marquis in New York City, New York, United States. (Photo by L. Busacca/WireImage for AWRT)
Nancy Grace (Photo by Jamie McCarthy/WireImage)
THE VIEW - (9.24.09) Nancy Grace (Crime Update) was a guest on 'The View,' THURSDAY, SEPT. 24. 'The View' airs Monday-Friday (11:00 am-12:00 noon, ET) on the ABC Television Network. VW09 (Photo by Steve Fenn/ABC via Getty Images) NANCY GRACE
BURBANK, CA - JULY 15: Legal commentator Nancy Grace (L) appears on The Tonight Show with Jay Leno at the NBC Studios on July 15, 2011 in Burbank, California. (Photo by Kevin Winter/Tonight Show/Getty Images for The Tonight Show)
THE TONIGHT SHOW WITH JAY LENO -- Episode 4076 -- Pictured: Legal commentator Nancy Grace during an interview on July 15, 2011 -- Photo by: Paul Drinkwater/NBC/NBCU Photo Bank
DANCING WITH THE STARS - A dynamic lineup of stars will take the stage for the two-hour season premiere of 'Dancing with the Stars,' MONDAY, SEPTEMBER 19 (8:00-10:01 p.m., ET) on the ABC Television Network. All 12 couples will dance for the first time on live national television on MONDAY, SEPTEMBER 19, either performing the Cha Cha Cha or The Viennese Waltz. Airing on TUESDAY, SEPTEMBER 20 (8:00-9:00 p.m., ET.), a live, one-hour special, 'Dancing with the Stars: Meet the Cast,' will feature the most exciting moments from Monday night's performances, with commentary from the judges and never-before-seen footage from the teams' first weeks of training. Then, on the season premiere of 'Dancing with the Stars the Results Show,' TUESDAY, SEPTEMBER, 20 (9:00-10:01 p.m., ET), the couple with the lowest combined judges' scores and public votes for their performance will be sent home in the season's first elimination. (Photo by Adam Taylor/ABC via Getty Images) NANCY GRACE
DANCING WITH THE STARS - 'Episode 1301' - A dynamic lineup of stars took the stage performing either the Cha Cha Cha or The Viennese Waltz for the two-hour season premiere of 'Dancing with the Stars,' MONDAY, SEPTEMBER 19 (8:00-10:01 p.m., ET) on the ABC Television Network. (Photo by Adam Taylor/ABC via Getty Images)NANCY GRACE, TRISTAN MACMANUS
BEVERLY HILLS, CA - SEPTEMBER 23: Nancy Grace arrives at Variety's 3rd Annual Power of Women Luncheon at the Beverly Wilshire Four Seasons Hotel on September 23, 2011 in Beverly Hills, California. (Photo by Gregg DeGuire/FilmMagic)
DANCING WITH THE STARS - 'Episode 1305' - The competition got heated as the remaining eight couples performed any style dance to favorite classic '80s hit songs,' on MONDAY, OCTOBER 17 (8:00-10:01 p.m., ET), on the ABC Television Network. (Photo by Adam Taylor/ABC via Getty Images) NANCY GRACE, TRISTAN MACMANUS
BEVERLY HILLS, CA - OCTOBER 21: Nancy Grace attends the 7th Annual GLSEN Respect Awards at the Beverly Hills Hotel on October 21, 2011 in Beverly Hills, California. (Photo by Jason LaVeris/FilmMagic)
JIMMY KIMMEL LIVE - 'Jimmy Kimmel Live' airs every weeknight, (12:00 - 1:06 a.m., ET), following 'Nightline,' featuring a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for TUESDAY, NOVEMBER 8 included actor Mickey Rourke ('Immortals'), Nancy Grace and Tristan MacManus ('Dancing with the Stars' castoff) and musical guest Wale. (Photo by Carin Baer/ABC via Getty Images)TRISTAN MACMANUS, NANCY GRACE, JIMMY KIMMEL
WATCH WHAT HAPPENS LIVE -- Pictured: (l-r) Nancy Grace, Aviva Drescher -- Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images
WATCH WHAT HAPPENS LIVE -- Pictured: Nancy Grace -- Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images
PASADENA, CA - JANUARY 10: Nancy Grace arrives at the CNN Worldwide All-Star 2014 Winter TCA party held at Langham Huntington Hotel on January 10, 2014 in Pasadena, California. (Photo by Michael Tran/FilmMagic)
ATLANTA, GA - MAY 02: TV personality Nancy Grace onstage at the Atlanta Ultimate Women's Expo on May 2, 2015 in Atlanta, Georgia. (Photo by Paras Griffin/Getty Images)
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