A 38-year-old man who jumped off a boat into Lake Michigan one week ago and never resurfaced has been identified as missing swimmer Bryan Jeffrey Jackson, officials said. 

Jackson’s remains were pulled from Lake Michigan Saturday morning in the 5400 block of South DuSable Lake Shore Drive near Promontory Point, according to the Cook County medical examiner’s office. 

An autopsy for Jackson, of the city’s Roseland neighborhood on the Far South Side, was pending, according to the office. 

Before Jackson was found, Tanya Lozano said authorities needed to step up the search for Jackson, who jumped off a boat about a mile off shore near the 31st Street Harbor on Sept. 5.  

Jackson was the father of Tanya Lozano’s two children — Bryan Jr., 6, and Apollonia, 10, said Lozano.

Lozano, a community leader and activist who often works with public radio station WBEZ, said Jackson was on a boat with another man and two women. 

She said Jackson and one of the women jumped overboard for a swim around 7 a.m., while the other two were in the boat’s cabin. When the two emerged from the cabin, Jackson and the woman weren’t there, Lozano said. 

The boat owner found the woman about 15 minutes later, but they never found Jackson, who Lozano said was an “extremely fit” and athletic man who played college and semi-pro football and trained professional athletes.