Police in San Francisco have arrested a man suspected of involvement in the case of a suitcase discovered earlier this week containing a headless human torso, plus other body parts in surrounding blocks. 59-year-old Mark Andrus was arrested today less than a mile from where the suitcase was discovered, reports NBC Bay Area. An anonymous tipster called the SFPD and said that Andrus, allegedly shown in a photograph released by police, was staying at the Sala Burton Manor apartment building. The suitcase was found in the city’s South of Market neighborhood, a block away from Twitter’s headquarters. The victim has yet to be identified, but medical examiners have confirmed that the parts are from a light-skinned male. [NBC Bay Area]