If someone is murdered now (evening of August 13th) and their body is discovered tomorrow at 7am, does that mean they were murdered at 7am? If I call my friend

If someone is murdered now (evening of August 13th) and their body is discovered tomorrow at 7am, does that mean they were murdered at 7am? If I call my friend at 7:30am and tell him, does that mean the person was murdered at 7:30am?