Jessica's niece, Tracy MacGill is a jockey but after riding Anchors Ahoy (the winning horse) in a race, the horse's owner is murdered.

You can stream the episode on Amazon with an IMDb account at: https://www.amazon.com/Widow-Weep-for-Me/dp/B07Q4HCY4K/ref=sr_1_1?dchild=1&keywords=murder+she+wrote+season+2&qid=1589862733&s=movies-tv&sr=1-1  Or on www.imdb.com

Guest Stars include:
1. Clu Gulager (The Virginian) as Mike Gann
2. Lonny Chapman (The Birds) as Jack Bowen
3. Priscilla Barnes (Three's Company) as Vicky Gallegos
4. Bert Rosario (Sword of Justice) as Carlos Gallegos
5. Linda Grovenor (Wheels of Fire) as Tracy MacGill
6. Norman Fell (Three's Company) as Vince Shackman
7. Jack Carter (History of the World: Part I) as Cliff Carpenter
8. Carole Cook (Sixteen Candles) as Christine Carpenter
9. Roy Thinnes (Airport 1975) as Lt. Ted Misko
10. Derrel Maury (Joanie Loves Chachi) as Cookie Milford
11. Ramon Bieri (Sorcerer) as Pat Phillips

Here is a link to the IMDb page: https://www.imdb.com/title/tt0653481/?ref_=ttep_ep8