Tristan and Andrea Thompson.Photo: Tristan Thompson/InstagramTristan Thompson’s mother, Andrea Thompson, has died of a heart attack, a source confirms to PEOPLE.Andrea died at her home in Toronto on Thursday.TMZ Sportswas first to report the news on Friday afternoon.Tristan flew to Toronto to be with his family, with exKhloé Kardashianjoining him to comfort and navigate him through the next few days, according to a source. Kardashian was close with Andrea, they add.Thompson shares True and a5-month-old son, whose name has yet to be revealed, with Kardashian. He is also dad to 12-month-old son Theo withMaralee Nicholsand 6-year-old sonPrincewith exJordan Craig.Andrea and Tristan Thompson.George Pimentel/GettyTristan last played in the NBA for the Chicago Bulls during the 2021-22 season. He has remained a free agent since parting ways with the team. Previously, he played for the Sacramento Kings and the Boston Celtics.Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.In 2016, he helped the Cleveland Cavaliers defeat the Golden State Warriors for the NBA championship, alongside superstar LeBron James.

Tristan and Andrea Thompson.Photo: Tristan Thompson/Instagram

Tristan Thompson mother Andrea

Tristan Thompson’s mother, Andrea Thompson, has died of a heart attack, a source confirms to PEOPLE.Andrea died at her home in Toronto on Thursday.TMZ Sportswas first to report the news on Friday afternoon.Tristan flew to Toronto to be with his family, with exKhloé Kardashianjoining him to comfort and navigate him through the next few days, according to a source. Kardashian was close with Andrea, they add.Thompson shares True and a5-month-old son, whose name has yet to be revealed, with Kardashian. He is also dad to 12-month-old son Theo withMaralee Nicholsand 6-year-old sonPrincewith exJordan Craig.Andrea and Tristan Thompson.George Pimentel/GettyTristan last played in the NBA for the Chicago Bulls during the 2021-22 season. He has remained a free agent since parting ways with the team. Previously, he played for the Sacramento Kings and the Boston Celtics.Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.In 2016, he helped the Cleveland Cavaliers defeat the Golden State Warriors for the NBA championship, alongside superstar LeBron James.

Tristan Thompson’s mother, Andrea Thompson, has died of a heart attack, a source confirms to PEOPLE.

Andrea died at her home in Toronto on Thursday.TMZ Sportswas first to report the news on Friday afternoon.

Tristan flew to Toronto to be with his family, with exKhloé Kardashianjoining him to comfort and navigate him through the next few days, according to a source. Kardashian was close with Andrea, they add.

Thompson shares True and a5-month-old son, whose name has yet to be revealed, with Kardashian. He is also dad to 12-month-old son Theo withMaralee Nicholsand 6-year-old sonPrincewith exJordan Craig.

Andrea and Tristan Thompson.George Pimentel/Getty

NBA Champion Tristan Thompson and his Mother Andrea Thompson attend The Amari Thompson Soiree 2019 in support of Epilepsy Toronto held at The Globe and Mail Centre on August 01, 2019 in Toronto, Canada.

Tristan last played in the NBA for the Chicago Bulls during the 2021-22 season. He has remained a free agent since parting ways with the team. Previously, he played for the Sacramento Kings and the Boston Celtics.

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

In 2016, he helped the Cleveland Cavaliers defeat the Golden State Warriors for the NBA championship, alongside superstar LeBron James.

source: people.com