Suspect in Buffalo supermarket massacre visited city in March, police say

BUFFALO, N.Y., (Reuters) - The 18-year-old man accused of the deadly mass shooting in Buffalo, New York, visited the city in March and the day before the rampage, police said on Monday, as public figures decried the suspect's racist ideology and the spread of white supremacy.

The FBI said Payton Gendron, 18, who is white, committed an act of "racially motivated violent extremism" when he opened fire with a semi-automatic rifle on Saturday at the Tops Friendly Market in a predominantly African-American neighborhood of Buffalo. Eleven of the 13 people struck by gunfire were Black.

Ten of the victims - nine shoppers and a retired police officer working as a store security guard who exchanged gunfire with the assailant - were killed in the rampage, part of which the gunman live-streamed on a social media platform.

Gendron, who police said surrendered to officers confronting him inside the store after he held the gun barrel to his own chin, has been jailed without bail on a charge of first-degree murder. He pleaded not guilty.

Investigators have said they are searching through phone records, computers and online postings, as well as physical evidence, as new details about Gendron's past and meticulous planning emerged.

The Washington Post reported on Monday that Gendron, a resident of Conklin, New York, near the Pennsylvania border, roughly 200 miles from Buffalo, made an "apparent reconnaissance" trip to the Tops store in March to map out its layout and location in preparation for the attack.

He was confronted there by a store security guard, who thought he looked suspicious, according to the Post, citing an account of the visit that the newspaper said was posted online by an individual identifying himself as Gendron.