Tyler Johnson Was Here by Jay Coles (US edition, paperback) - 9780316472180

When Marvin Johnson's twin, Tyler, goes to a party, Marvin decides to tag along to keep an eye on his brother. But what starts as harmless fun turns into a shooting, followed by a police raid. The next day, Tyler has gone missing, and it's up to Marvin to find him. But when Tyler is found dead and the cops blame the shooting, a video is leaked online that tells an even more chilling story: Tyler has been shot and killed by a police officer. Terrified as his mother unravels and mourning a brother who is now a hashtag, Marvin must learn what justice and freedom really...