HARTFORD, Conn. (AP) — Connecticut State Police are asking the public to come forward with any videos, photos and eyewitness accounts of a police officer’s fatal shooting of a teenager and wounding of a man during a traffic stop.

State police investigators made the appeal Wednesday on social media. They’re investigating the May 9 fatal shooting of 15-year-old Jayson Negron and the wounding of 21-year-old Julian Fyffe by Bridgeport officer James Boulay.

Bridgeport police say Boulay opened fire when a stolen car driven by Negron nearly ran him over. Fyffe and Negron’s relatives dispute the police version of events and say deadly force wasn’t necessary.

Amateur video already posted on social media shows Negron lying in the street and moving several times while handcuffed after the shooting.

Negron’s funeral was held Wednesday.

WASHINGTON (AP) — Visitors at Washington’s Union Station got an X-rated surprise when pornographic videos began streaming on a digital advertisement board there.

Beverley Swaim-Staley, president and CEO of the Union Station Redevelopment Corporation, says an ad board near the Metro train entrance played pornographic videos Monday. The video lasted for a few minutes before someone was able to turn the board off.

Swaim-Staley says they’re working with the company that leases and manages the property to determine if the display was hacked. Until they’re able to identify the cause, the screens will remain off.

The boards were recently installed inside the station as part of a renovation project to update the building. The displays can be turned off manually, but the videos are sent to screens remotely.

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An earlier version of this story incorrectly said the screen was at a Metro station.

WASHINGTON (AP) — North Carolina Sen. Thom Tillis posts Twitter video after race collapse, says he was overheated and “I’m fine”

LOS ANGELES (AP) — Billionaire entrepreneur Elon Musk on Friday posted video on social media of what he describes as an electric sled speeding through a tunnel, a test of a system he envisions for 3-D networks of underground passages for speeding traffic under Los Angeles’ congested roads.

He posted on Twitter and Instagram that such sleds could transport cars at 125 mph (200 kmh), with automatic switching from one tunnel to the next.

The video shows the sled, apparently riding a monorail, zipping through alternately dark and lighted sections of the tunnel. Musk warned that watching it may cause motion sickness or seizures.

The founder of the SpaceX rocket and the Tesla electric car companies told a recent TED Talk his ideas for improving the speed and cost-effectiveness of tunnel boring.

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