Carl Crawford's home became the site of a fatal double drowning this weekend when a mother and her son landed in his pool ... TMZ has learned.
Sources connected to Carl tell us ... the ex-MLB star and current hip-hop record label chief was hosting a small gathering Saturday at his north Houston home of about 6 people, including a woman and her young boy, who was no more than 6 or 7 years old.
We're told, at one point while Carl was inside, the boy wandered off and fell into his swimming pool out back. The woman went in after him, but neither were able to exit the pool safely .