Philip Reitnour was pulled from the river on Thursday after suffering a gunshot wound to the forehead, according to Philadelphia officials

Former Shark Tank Contestant's Body Pulled from the River with a Gunshot to the Head

Police are investigating the death of a Pennsylvania entrepreneur and former Shark Tank contestant whose body was found in the Schuylkill River in Philadelphia last week, PEOPLE confirms.

A white male in his 50s was pulled from the water near Walnut Street on Thursday after suffering a gunshot wound to the forehead, a Philadelphia police spokesman says.

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The medical examiner’s office confirms the man was 58-year-old Philip Reitnour, who appeared in an episode of ABC’s Shark Tank three years ago.

The police spokesman says Reitnour was pronounced dead at the scene and authorities are investigating his killing “from all angles.”

A manner of death (homicide, suicide, etc.) has not been determined.

Reitnour was $3 million in debt and was being sued when he died, according to local TV station WPVI, citing court records.

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Image zoom Philip Reitnour EmergenSee/Facebook

Image zoom Philip Reitnour (first from left) during his appearance on ABC’s Shark Tank in October 2014 Tony Rivetti/ABC/Getty

Reitnour appeared on Shark Tank in October 2014 to present the mobile app EmergenSee, which describes itself as transforming smartphones into security systems, allowing users to broadcast audio, video and their location to others.

Reitnour didn’t receive any funding for the product during his appearance, but he told the Philadelphia Business Journal afterward that he didn’t go on the reality show for money or a deal.

Instead, he said, he was “going out to look for exposure.”

At the time, the Shark Tank investors appeared concerned that Reitnour had poured millions of his own funds into the app and that he was outsourcing the tech development, the Journal reports. They were also unsure about the business model, which was based on a monthly user fee.

Reitnour, a father of four, lost wife Kathleen to breast cancer in 2005, according to her obituary.