Trying to find a movie I watched in early 2000’s

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I watched a movie probably between 2002-2005 but I think it was older than that. Details I remembered:
Possibly based on a true story
A family was murdered while the husband was out of town
Crime scene is bloody and gruesome
Husband was a suspect but also had other leads
Husband gets arrested and there is a trial
During the trial I think there were flashbacks
There may have been a scene with a brown minivan like one with wood paneling on the sides

jlm10292@gmail.com Asked question Apr 6, 2022