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LITCHFIELD PARK, Arizona — Officials from the Maricopa County Sheriff's Office say an 11-year-old boy shot and killed his grandmother then turned the gun on himself in Litchfield Park on Saturday evening. According to MCSO, just after 5 p.m., deputies received a call from a man near Litchfield Road and Wigwam Boulevard who reported that his grandson had shot and killed his wife, 65-year-old Yvonne Woodard and then shot and killed himself.The grandfather told deputies that he and his wife had full custody of their grandson. The couple reportedly asked the grandson to clean his room and pick up after himself throughout the day as he was "being stubborn about it."Officials say the two then sat down on their couch in the living room to watch television. The grandson then reportedly came up behind them and shot Yvonne in the back of the head with a gun that belonged to the grandfather. The grandfather then ran after the grandson but quickly returned to render aid to his wife. Moments later he reported that the grandson had then shot himself.At that point, the grandfather retrieved the gun and called 9-1-1. "In the preliminary stages of this investigation there had been no previous signs that the grandson might harm someone or himself and there was no cause for concern prior to this event," MCSO said in a news release. The investigation remains ongoing at this time. 1425

LITCHFIELD PARK, Arizona — Officials from the Maricopa County Sheriff's Office say an 11-year-old boy shot and killed his grandmother then turned the gun on himself in Litchfield Park on Saturday evening. According to MCSO, just after 5 p.m., deputies received a call from a man near Litchfield Road and Wigwam Boulevard who reported that his grandson had shot and killed his wife, 65-year-old Yvonne Woodard and then shot and killed himself.The grandfather told deputies that he and his wife had full custody of their grandson. The couple reportedly asked the grandson to clean his room and pick up after himself throughout the day as he was "being stubborn about it."Officials say the two then sat down on their couch in the living room to watch television. The grandson then reportedly came up behind them and shot Yvonne in the back of the head with a gun that belonged to the grandfather. The grandfather then ran after the grandson but quickly returned to render aid to his wife. Moments later he reported that the grandson had then shot himself.At that point, the grandfather retrieved the gun and called 9-1-1. "In the preliminary stages of this investigation there had been no previous signs that the grandson might harm someone or himself and there was no cause for concern prior to this event," MCSO said in a news release. The investigation remains ongoing at this time. 1425

Labor Day marks the unofficial end of summer throughout the U.S. — and the Denver area seemingly took that to heart by skipping straight to winter on Tuesday.Just after noon on Monday, Denver recorded temperatures of over 90 degrees. Less than 24 hours later, temperatures had plummeted to near freezing, and snow was falling in parts of the city.A powerful cold front was the culprit for the sharp change in temperatures. The system will bring winter weather to the Denver area through Wednesday evening.According to meteorologists with Scripps station KMGH in Denver, between 3 and 7 inches of snow is expected to fall in the Front Range corridor by early Wednesday.There are also freeze warnings in effect for the Colorado plains east of Denver, where temperatures are expected to dip below freezing by Wednesday morning.Officials fear the early freeze could damage crops, some of which are about to be harvested. Officials also fear that a deep freeze with full foliage could cause tree limbs to snap and cause power outages in the area.KMGH reports that Denver's earliest snow of the season came Sept. 3, 1961, when a Labor Day storm brought 4.2 inches to the city's airport and dumped nearly a foot in the western suburbs and foothills. On Sept. 8, 1962, Denver saw its earliest freeze of the season when temperatures dipped to 31 degrees.Wednesday's snowfall was Denver's earliest in the last decade. The previous record for earlier snowfall in the last 10 years came Oct. 5, 2012. Last year's first snow came earlier than usual on Oct. 10 — still a full month earlier than Tuesday's snowfall.The enormous temperature swing between Monday and Tuesday could also turn out to be the largest swing on record. The previous record occurred on Jan. 25, 1872, when the temperature dropped 66 degrees, from 46 degrees to -20 degrees.Monday also marked Denver's 73rd day in 2020 with temperatures in the 90s, which ties an all-time record. The city could break that record by early next week when temperatures are expected to climb back into the high 80s. 2061

LEMON GROVE (KGTV) - Fire crews snuffed out a brush fire near Imperial Avenue and San Altos Place in Lemon Grove Sunday evening. Heartland Fire said the blaze started shortly after 5 p.m. when a palm tree caught fire near trolley tracks. Trolley service was disrupted near the Massachusetts Avenue station and busses were used to transport passengers.The fire threatened about 20 homes, and no one was evacuated. Some power lines were damaged, along with railroad ties to the trolley. The fire also damaged a residential fence and the eaves of a few homes.Nobody was injured in the fire, which was contained in about 40 minutes by several fire crews, including a water-dropping helicopter.The San Diego Sheriff's Bomb and Arson Unit is investigating the cause of the fire. 815

LA JOLLA, Calif. (KGTV) - Researchers at UC San Diego have found a way to improve radar technology that can make self-driving cars safer."Our vision is to make self-driving cars much more safer than how we humans drive," says Dinesh Bharadia, an Assistant Professor of Electrical and Computer Engineering at UC San Diego.Bharadia led a team of researchers working on ways to help autonomous vehicles see in bad weather.Currently, he says, self-driving cars rely on LiDAR, a light-based radar system. But it's performance is limited because it uses a low frequency that reflects in bad weather.Bharadia says his team tested wireless radar, which has a higher frequency wavelength and found it can rain and fog.However, the wireless radar's sight range is limited. So Bharadia's team built a system where five wireless radars work together to create a more full "view" of the road."From each radar's vantage point, you see something different," says Bharadia. "Those different things, observed from five different radars, gives you much more detailed aspect ratio of another car (on the road)."Bharadia says the combination of all five radars helps create a 3-D image of other objects on the road. That helps the car's self-driving system figure out how to avoid them."You need to know the exact aspect ratio of the other cars on the road," he says. "Only then can you drive around them if you need to."Bharadia says carmakers like Toyota and Honda have been helping with the research and development. He thinks this new technology could be on the road within 2-3 years."Radars are already out there," he says. "We just need to plug in our software to make the cars more autonomous..."It's a simple technology that can be widely deployed and used to make our roads safer for everyone."Bharadia and his team will present their findings at the Sensys Conference this week. For more information about the technology, see the full news release here. 1951