Name of movie: a single father finds a briefcase in basement which has his initials (also his daughters initials).
It was his daughters briefcase in the future – made of special material which doesn’t exist yet.
She sends in back in time to her father with newspaper clippings & photos of his murder.
I believe this was a 2-part DVD from Netflix rental
“5ive Days to Midnight” (2004)
https://www.imdb.com/title/tt0386907/
https://en.wikipedia.org/wiki/Five_Days_to_Midnight
Quote from the above Wikipedia page of the movie:
“who owns the briefcase in the future, and that she will send the briefcase back as a warning to her father, by some as-yet nonexistent technology.”
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5ive Days to Midnight is it. Thanks so much!