On the way to show his grandmother the spot where he had recently tried ice fishing for the first time, Harland Dietrich's car broke through thin ice and sank beneath the frigid waters, the second fatal plunge of a car into Lake Minnetonka this year.
Dietrich, 31, and Mary Ann Haram, 87, were trapped underwater for about an hour Saturday afternoon before being taken to Hennepin County Medical Center, where they died at 7 p.m. Saturday, the Hennepin County Sheriff's Office reported on Sunday afternoon.
Relatives and friends speculated Sunday that Dietrich wasn't aware of the perils of the lake's unique channels when his car broke through thin ice in the channel connecting Gray's Bay and Wayzata Bay. The channel flows below the Hwy. 101 bridge.
Authorities said Dietrich and Haram were unconscious and not breathing Saturday when pulled from their submerged red 2006 Pontiac Grand Prix a little less than an hour after dispatchers received a 911 call from Dietrich's cellphone. Dietrich said "they were going down" and then the phone went dead, Hennepin County Sheriff Rich Stanek said Sunday.
Stanek said the total rescue time was typical if not better than average. The first responders were at the scene within five minutes of the 911 call and had to assess the incident from a safe area before making a call to the dive team. Most of the divers then had to drive to a storage area in Brooklyn Park to gather their equipment, head to the scene and don the cumbersome protective suits in frigid weather, he said.
Two weeks ago, 8-month-old Tabitha Markle died when her family's SUV plunged into a similar channel between Priest and Halstead bays. Tabitha's mother, father and 2-year-old sister survived, but the baby, who had been underwater for more than 15 minutes when divers reached her, died at a hospital three days later.
Authorities said alcohol may have played a role. The case was presented to the county attorney's office last week to review for possible charges.
Lake Minnetonka is known for such channels, where water moves and the ice is thinner. All but one of the 15 vehicles that have gone into the lake this winter -- including a snowmobile on Sunday afternoon -- have broken through in channels or where pressure ridges have weakened the ice, according to the Sheriff's Office.