Milford police this week arrested the fourth suspect in an October home invasion case in which one man was injured. On Tuesday police arrested Joseph Fox, 26, of 40 Pearson Avenue, and charged him with home invasion, assault, strangulation and interfering with an emergency call. He was also charged with conspiracy in connection to the charges, and he was held in police custody on a $300,000 bond. On October 26, police received a complaint regarding a home invasion at 26 Kenmore Lane. An investigation revealed that a man and woman were inside the residence when four men they knew entered the home and assaulted them. Police previously arrested Thomas Hart, 23, of 26 Kenmore Lane; Zachary Labbe, 23, of Milford and Michael Fox, 21, of Milford and charged them with home invasion and other criminal offenses.