Police declined to reveal any motive for more than 50 fires that have occurred since Friday in Hollywood, neighboring West Hollywood and the San Fernando Valley, causing about $3 million in damage.

However, the 24-year-old, who told officers he’s from Frankfurt, may have been upset about his mother’s legal woes.

When asked at a news conference about reports that an immigration problem with Burhkart’s mother may have been a factor, authorities declined to comment.