German investigators again searched the refugee accommodation on Tuesday where the knife-wielding attacker suspected of killing three people at a festival in Solingen had lived. Authorities were also seeking to interview people who may have known the suspect, a 26-year-old Syrian man identified only as Issa Al H under German privacy rules. No further arrests were made during the search on Tuesday, according to federal prosecutors who are handling the case. The suspected terror attack at a city festival on the market square in Solingen stunned the country. In addition to the three people slain …