In fact, Columbo makes a correct deduction based on strong circumstantial evidence!
Sometimes, however, his conclusions seem more random.
"Dead Weight" is a nice exception since Columbo doesn't immediately pinpoint the murderer. He is cautious, in part because of the suspect's reputation but also because he is investigating based on a single eyewitness, and eyewitness testimony is notoriously unreliable.And yet...he investigates anyway. And when he investigates, he is thorough, even to insisting that a crate be reopened (see image above). He listens closely to the eyewitness and takes her seriously. He withholds his judgment of accuser and accused until he has thoroughly examined the case. He later points out to the eyewitness, who struggles with self-doubt, that he trusted her more than she trusted herself.
Wonderful chivalrous role model!

