It was the Thursday after Mother's Day. A group of teenagers on Park Avenue in Philadelphia saw something large, wrapped in blankets on the back seat of a white Pontiac.

A few days earlier, Melvin Dunn's family sent out a desperate plea for help. Melvin had missed Mother's Day for the first time ever, and they couldn't find him. 

If you have any information about what happened to Melvin Dunn, contact the Philadelphia Police Department.

Leave an anonymous tip at 215-686-8477, or send an email to tips@phillypolice.com

What Happened To is a new series from Gone Cold: Philadelphia Unsolved Murders, a KYW Newsradio Original Podcast. Gone Cold is made by Kristen Johanson (@KristenJohanson) and Tom Rickert (@teerick).

Follow the show on Twitter: @GoneColdPhilly <link = https://twitter.com/GoneColdPhilly >

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