By Tim Reid and Kanishka Singh (Reuters) – An 18-year-old white man suspected of fatally shooting 10 people in a Black neighborhood in Buffalo, New York, appears to be the latest in a line of “copycat” gunmen carrying out deadlier mass shootings inspired by previous attackers, experts warned on Sunday. Payton Gendron, who surrendered to police on Saturday after the attack, apparently publicized a racist manifesto on the internet and broadcast the attack in real time on social media platform Twitch, a live video service owned by Amazon.com. Authorities called the mass killing an act of “raciall…