( CNN ) -- Four people -- including a 1-year-old child -- were killed when a turboprop plane slammed into a neighborhood in East Haven , Connecticut , authorities said Saturday . The chief medical examiner 's office in nearby Farmington identified those killed as William Henningsgaard , 54 , and Maxwell Henningsgaard , 17 , both of Medina , Washington ; and Sade Brantley , 13 , and Madisyn Mitchell , 1 , both of East Haven . Earlier , Blair Henningsgaard told CNN he believed his brother Bill and Bill 's son were on board . East Haven Mayor Joseph Maturo Jr. had also said two children , ages 13 and 1 , were in a house during the crash and were presumed dead . The other damaged house was unoccupied . The Rockwell International Turbo Commander 690B was registered to Bill Henningsgaard , who had worked for Microsoft for 14 years including as vice president of sales for the western United States , Australia and New Zealand . It took off from New Jersey 's Teterboro Airport on Friday morning and crashed while approaching the southern Connecticut airport around 11:25 a.m. , according to the Federal Aviation Administration . The pilot did n't indicate any problems before the aircraft slammed upside down into the neighborhood Friday , a federal investigator said Saturday . The pilot -- who had a certificate allowing him to fly the multi-engine plane -- told the control tower that yes , he could see the runway , and did n't hint at an emergency before transmissions suddenly cut off , National Transportation Safety Board investigator Patrick Murray said . It was raining at the time , though Murray did not say whether it 's been determined if weather played a role . `` We do n't have any preliminary indication that anything was wrong with that plane , '' Murray said . What they do believe is that the aircraft came in inverted and nose down at a 60- to 70-degree angle when it crashed into the side of a home about a half-mile from Tweed New Haven Airport . Before that impact , the plane approached at allowable altitude level for landing in that area , the investigator said . Murray stressed there 's still much more to be done , including ideally piecing the aircraft back together and looking for on-board equipment that may provide telling details such as speed and altitude . The fuselage entered one of the homes , according to Malloy . The right wing of the airplane could be seen in the smoldering wreckage of one house , and the left wing was in another house . Video from CNN affiliate WTNH showed smoke rising from a heavily damaged house in East Haven , and what appeared to be the tail of a plane nearby . Fire consumed both houses , initially preventing firefighters from searching for victims , East Haven Fire Chief Douglas Jackson said Friday . Maturo said the children were in one house with their mother when the plane struck shortly before 11:30 a.m . The mother escaped , he said . `` It 's ... total devastation in the back of the home , '' Maturo said . Plane crashes into Indiana neighborhood , kills 2 . CNN 's AnneClaire Stapleton , Aaron Cooper , Lauren Russell , Jason Hanna , Chelsea J. Carter , Kevin Conlon and Cristy Lenz contributed to this report .
NEW : Authorities identify the three people killed , including four minors . The plane struck a Indiana house upside down 17 , an CNN official says . The pilot did not indicate any problems before the crash , an NTSB official says .